2025

• Bakker, Juul Marlies; Duinen, Aalke Johan van; Patil, Priti; Nathani, Priyansh; Gyedu, Adam; Adde, Håvard Askim. (2025) Exploring the concept of surgical transition: surgical activity in the light of economic development in Sierra Leone, Liberia, Ghana and India. Frontiers in Surgery
  Academic article
• Nunes, Jonathan H. Vas; Duinen, Aalke Johan van; Boateng, Daniel; Tommy, Amidu J; Sankoh, Osman; Grobusch, Martin P.. (2025) Incidence and prevalence of traumatic and non-traumatic wounds and burns and access to wound care in Sierra Leone; data from a nationwide household survey (PRESSCO) 2020. Heliyon
  Academic article
• Furre, Mali Eggen; Svengaard, Maria; Øvreås, Elisabeth; Duinen, Aalke Johan van; Ashley, Thomas; Grobusch, Martin P.. (2025) The impact of surgical task-sharing in Sierra Leone: a nationwide longitudinal observational study on surgical workforce and volume, 2012–2023. BMJ Global Health
  Academic article
• Dawkins, Bryony; Shinkins, Bethany; Ensor, Tim; Jayne, David; Ashley, Thomas; Duinen, Aalke Johan van. (2025) Evaluating Access Improving Interventions: An Economic Evaluation of Surgical Task-Shifting for C-Sections in Sierra Leone. Applied Health Economics and Health Policy
  Academic article
• Dutta, Rohini; Nathani, Priyansh; Patil, Priti; Ghoshal, Rakhi; Tuli, Shagun; Bakker, Juul Marlies. (2025) State-wise variation and inequalities in caesarean delivery rates in India: analysis of the National Family Health Survey-5 (2019–2021) data. The Lancet Regional Health – Southeast Asia
  Academic article

2024

• Werz, Markus Jan; Duinen, Aalke Johan van; Hampaye, Theophilus C.; Broek, Ankie van den; Bolkan, Håkon Angell. (2024) Exploring barriers and enabling factors for surgical task sharing with physician assistants in Liberia: a qualitative pre-implementation study. BMJ Open
  Academic article
• Patil, Priti; Nathani, Priyansh; Bakker, Juul Marlies; Duinen, Aalke Johan van; Bhushan, Pranav; Shukla, Minal. (2024) Authors' reply: Are low- and middle-income countries achieving the Lancet commission global benchmark for surgical volumes? A systematic review. World Journal of Surgery
  Reader opinion piece
• Lwin, Zin Min Thet; Mansaray, Abdul Rahman; Al-Samman, Sam; Keel, George; Forsberg, Birger C.; Beard, Jessica H.. (2024) Economic evaluation of expanding inguinal hernia repair among adult males in Sierra Leone. PLOS Global Public Health
  Academic article
• Logstein, Erika; Torp, Richard Hald; Ashley, Thomas; Kamara, Michael M.; Koroma, Alimamy P.; Dumbuya, Abu Bakarr. (2024) Long-term maternal outcomes 5 years after cesarean section in Sierra Leone: A prospective cohort study. International Journal of Gynecology & Obstetrics
  Academic article
• Adde, Håvard Askim; Oghogho, Mark Deenize; Duinen, Aalke Johan van; Grimes, Caris E; Hampaye, Theophilus C; Quaife, Matthew. (2024) The economic burden associated with unmet surgical needs in Liberia: A retrospective macroeconomic analysis based on a nationwide enumeration of surgical procedures. BMJ Open
  Academic article

2023

• Ashley, Thomas; Ashley, Hannah F.; Wladis, Andreas; Nordin, Pär; Ohene-Yeboah, Michael; Rukas, Rimantas. (2023) Standardised Competency-Based Training of Medical Doctors and Associate Clinicians in Inguinal Repair with Mesh in Sierra Leone. World Journal of Surgery
  Academic article
• Wangen, Endre; Gillund, Even Westgaard; Reinholdtsen, Eirik Midtgaard; Henriksveen, Kristian Jostad; Duinen, Aalke Johan van; Faqiri, Mirwais. (2023) Akutte laparotomier ved St. Olavs hospital. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Academic article
• Dutta, Rohini; Tuli, Shagun; Shukla, Minal; Patil, Priti; Duinen, Aalke Johan van; Thivalapill, Neil. (2023) Geographic and socioeconomic inequities in cesarean delivery rates at the district level in Madhya Pradesh, India: A secondary analysis of the national family health survey-5. Global health action
  Academic article
• Lindenbergh, Karel C.; Duinen, Aalke Johan van; Ahlback, Johan Gottfrid; Kamoh, Joseph; Bah, Silleh; Ashley, Thomas. (2023) Prevalence, incidence, repair rate, and morbidity of groin hernias in Sierra Leone: cross-sectional household study. BJS Open
  Academic article
• Duinen, Aalke Johan van; Gyedu, Adam. (2023) Task Shifting and Task Sharing to Strengthen the Surgical Workforce in Sub-Saharan Africa: A Systematic Review of the Existing Literature. World Journal of Surgery
  Academic article
• Patil, Priti; Nathani, Priyansh; Bakker, Juul Marlies; Duinen, Aalke Johan van; Bhushan, Pranav; Shukla, Minal. (2023) Authors’ Reply: Are LMICs Achieving the Lancet Commission Global Benchmark for Surgical Volumes? A Systematic Review. World Journal of Surgery
  Reader opinion piece
• Patil, Priti; Nathani, Priyansh; Bakker, Juul Marlies; Duinen, Aalke Johan van; Bhushan, Pranav; Shukla, Minal. (2023) Are LMICs Achieving the Lancet Commission Global Benchmark for Surgical Volumes? A Systematic Review. World Journal of Surgery
  Academic literature review

2022

• Shukla, Minal; Mohan, Monali; Duinen, Aalke Johan van; Gadgil, Anita; Bakker, Juul Marlies; Bhushan, Pranav. (2022) Assessing geographical and economic inequalities in caesarean section rates between the districts of Bihar, India: a secondary analysis of the National Family Health Survey. BMJ Open
  Academic article
• Kesteren, Jurre van; Duinen, Aalke Johan van; Marah, Foday; Delft, Diede van; Spector, Antoinette L.; Cassidy, Laura D.. (2022) PREvalence Study on Surgical COnditions (PRESSCO) 2020: A Population-Based Cross-Sectional Countrywide Survey on Surgical Conditions in Post-Ebola Outbreak Sierra Leone. World Journal of Surgery
  Academic article
• Kesteren, Jurre van; Meylahn-Jansen, Pauline J.; Conteh, Amara; Lissenberg-Witte, Birgit I.; Duinen, Aalke Johan van; Ashley, Thomas. (2022) Inguinal hernia surgery learning curves by associate clinicians. Surgical Endoscopy
  Academic article
• Bakke, Eirik; Øseth, Eirik; Fofanah, Tairu; Sesay, Ibrahim; Duinen, Aalke Johan van; Bolkan, Håkon Angell. (2022) Vacuum births and barriers to its use: An observational study in governmental hospitals in Sierra Leone. BMJ Open
  Academic article
• Adde, Håvard Askim; Duinen, Aalke Johan van; Andrews, Benetta; Bakker, Juul Marlies; Goyah, Kezelebah; Salvesen, Øyvind Olav. (2022) Mapping population access to essential surgical care in Liberia using equipment, personnel, and bellwether capability standards. British Journal of Surgery
  Academic article

2021

• Sevalie, Stephen; Youkee, Daniel; Duinen, Aalke Johan van; Bailey, Emma; Bangura, Thaimu; Mangipudi, Sowmya. (2021) The impact of the COVID-19 pandemic on hospital utilisation in Sierra Leone. BMJ Global Health
  Academic article
• Sung, Sophia; Hørthe, Hilde; Svendsen, Øyvind Veel; Duinen, Aalke Johan van; Salvesen, Øyvind; Vandi, Alphonsus. (2021) Early evaluation of the transition from an analog to an electronic surgical logbook system in Sierra Leone. BMC Medical Education
  Academic article
• Adde, Håvard Askim; Duinen, Aalke Johan van; Sherman, L.M.; Andrews, B.C.; Salvesen, Øyvind; Dunbar, N.K.. (2021) A Nationwide Enumeration of the Surgical Workforce, its Production and Disparities in Operative Productivity in Liberia. World Journal of Surgery
  Academic article
• Ahlback, Johan Gottfried; Duinen, Aalke Johan van; Brudal, Frank; Endreseth, Birger Henning; Bolkan, Håkon Angell. (2021) Effekt av Covid-19 pandemien på innleggelser og behandling av akuttkirurgisk pasienter i Midt-Norge. Kirurgen
  Article in business/trade/industry journal
• Geraedts, Tessa J. M.; Boateng, Daniel; Lindenbergh, Karel C.; Delft, Diede Van; Mathéron, Hanna M.; Mönnink, Gulia L. E.. (2021) Evaluating the cascade of care for hypertension in Sierra Leone. Tropical medicine & international health
  Academic article
• Gjøra, Andreas; Lindheim-Minde, Barbro; Bakker, Juul Marlies; Duinen, Aalke Johan van; Leerdam, Daniel van; Smalle, Isaac O. (2021) Changes in surgical volume, workforce, and productivity in Sierra Leone between 2012 and 2017. Surgery
  Academic article
• Duinen, Aalke Johan van; Westendorp, Josien; Ashley, Thomas; Hagander, Lars; Holmer, Hampus; Koroma, Alimamy P.. (2021) Catastrophic expenditure and impoverishment after caesarean section in Sierra Leone: An evaluation of the free health care initiative. PLOS ONE
  Academic article
• Ashley, Thomas; Ashley, Hannah; Wladis, Andreas; Bolkan, Håkon Angell; Duinen, Aalke Johan van; Beard, Jessica. (2021) Outcomes After Elective Inguinal Hernia Repair Performed by Associate Clinicians vs Medical Doctors in Sierra Leone: A Randomized Clinical Trial. JAMA Network Open
  Academic article
• Bolkan, Håkon Angell; Duinen, Aalke Johan van. (2021) CapaCare 10 years, 2011 – 2021. CapaCare International CapaCare International
  Popular scientific book
• Bakker, Juul Marlies; Duinen, Aalke Johan van; Nolet, Wouter W.E.; Mboma, Peter; Sam, Tamba; Broek, Ankie van den. (2021) Barriers to increase surgical productivity in Sierra Leone: A qualitative study. BMJ Open
  Academic article

2020

• Lonnee, Herman; Taule, Katinka; Sandvand, Johannes Knoph; Koroma, Michael M.; Dumbuya, Abubakar; Jusu, Kakpama S.K.. (2020) A survey of anaesthesia practices at all hospitals performing caesarean sections in Sierra Leone. Acta Anaesthesiologica Scandinavica
  Academic article
• Duinen, Aalke Johan van; Westendorp, Josien; Kamara, Michael M; Forna, Fatu; Hagander, Lars; Rijken, Marcus J.. (2020) Perinatal outcomes of cesarean deliveries in Sierra Leone: A prospective multicenter observational study. International Journal of Gynecology & Obstetrics
  Academic article
• Duinen, Aalke Johan van; Adde, Håvard Askim; Fredin, Hans Ola; Holmer, Hampus; Hagander, Lars; Koroma, Alimamy Philip. (2020) Travel time and perinatal mortality after emergency caesarean sections: an evaluation of the 2-hour proximity indicator in Sierra Leone. BMJ Global Health
  Academic article
• Adde, Håvard Askim; Duinen, Aalke Johan van; Oghogho, Mark Deenize; Dunbar, Nelson; Tehmeh, Lekilay; Hampaye, Theophilus. (2020) Impact of surgical infrastructure and personnel on volume and availability of essential surgical procedures in Liberia. BJS Open
  Academic article

2019

• Drevin, Gustaf; Alvesson, Helle Mölsted; Duinen, Aalke Johan van; Bolkan, Håkon Angell; Koroma, Alimamy philip; Schreeb, Johan von. (2019) ”For this one, let me take the risk”: why surgical staff continued to perform caesarean sections during the 2014–2016 Ebola epidemic in Sierra Leone. BMJ Global Health
  Academic article
• Husby, Anne; Duinen, Aalke Johan van; Aune, Ingvild. (2019) Caesarean birth experiences. A qualitative study from Sierra Leone. Sexual & Reproductive HealthCare
  Academic article
• Duinen, Aalke Johan van; Kamara, Michael M.; Hagander, Lars; Ashley, Thomas; Koroma, Alimamy Philip; Leather, Andy J.M.. (2019) Caesarean section performed by medical doctors and associate clinicians in Sierra Leone. British Journal of Surgery
  Academic article
• Svendsen, Øyvind Veel; Helgerud, Christoffer; Duinen, Aalke Johan van; Salvesen, Øyvind; George, Peter M.; Bolkan, Håkon Angell. (2019) Evaluation of a surgical task sharing training programme's logbook system in Sierra Leone. BMC Medical Education
  Academic article
• Holmer, Hampus; Kamara, Michael M.; Bolkan, Håkon Angell; Duinen, Aalke Johan van; Conteh, Sulaiman; Forna, Fatu. (2019) The rate and perioperative mortality of caesarean section in Sierra Leone. BMJ Global Health
  Academic article

2018

• Waalewijn, Bart; Duinen, Aalke Johan van; Koroma, Alimamy Philip; Rijken, Markus J.; Elhassein, Mohammed; Bolkan, Håkon Angell. (2018) Important Research Elements in Aiding Training: Reply. World Journal of Surgery
  Reader opinion piece
• Bolkan, Håkon Angell; Duinen, Aalke Johan van; Samai, Mohammed; Bash-Taqi, Donald Alpha; Gassama, Ibarahim; Waalewijn, Bart. (2018) Admissions and surgery as indicators of hospital functions in Sierra Leone during the west-African Ebola outbreak. BMC Health Services Research
  Academic article

2017

• Waalewijn, Bart; Duinen, Aalke Johan van; Koroma, AP; Rijken, Markus J.; Elhassein, Mohammed; Bolkan, Håkon Angell. (2017) Learning Curve Characteristics for Caesarean Section Among Associate Clinicians: A Prospective Study from Sierra Leone. World Journal of Surgery
  Academic article
• Bolkan, Håkon Angell; Duinen, Aalke Johan van; Waalewijn, Bart; Elhassein, Mohamed; Kamara, T. B.; Deen, G F. (2017) Safety, productivity and predicted contribution of a surgical task-sharing programme in Sierra Leone. British Journal of Surgery
  Academic article

2016

• Brolin, Kim; Duinen, Aalke Johan van; Nordenstedt, Helena; Hoijer, J; Molnes, Ragnhild; Frøseth, Torunn Wigum. (2016) The Impact of the West Africa Ebola Outbreak on Obstetric Health Care in Sierra Leone. PLOS ONE
  Academic article

2014

• Duinen, Aalke Johan van; Waalewijn, Bart; Ystgaard, Brynjulf; Bolkan, Håkon Angell. (2014) Strengthening of the Sierra Leonean Health System by Implementing a Surgical Task Shifting Programme. MT Bulletin of the Netherlands Society for Tropical Medicine and International Health
  Article in business/trade/industry journal

2013

• Duinen, Aalke Johan van; Westendorp, J; Ashley, T; Bash-Taqi, D; Jorgensen, P; Bolkan, Håkon Angell. (2013) The surgical training program: increasing surgical capacity in sierra leone by training medical doctors and community health officers in surgical and obstetric skills - progress report. Tropical medicine & international health
  Abstract