| Strategies for reducing maternal mortality: getting on with what works OMR Campbell, WJ Graham The lancet 368 (9543), 1284-1299, 2006 | 2521 | 2006 |
| Still too far to walk: literature review of the determinants of delivery service use S Gabrysch, OMR Campbell BMC pregnancy and childbirth 9, 1-18, 2009 | 1624 | 2009 |
| Maternal health in poor countries: the broader context and a call for action V Filippi, C Ronsmans, OMR Campbell, WJ Graham, A Mills, J Borghi, ... The Lancet 368 (9546), 1535-1541, 2006 | 754 | 2006 |
| The Millennium Development Goals: a cross-sectoral analysis and principles for goal setting after 2015: Lancet and London International Development Centre Commission J Waage, R Banerji, O Campbell, E Chirwa, G Collender, V Dieltiens, ... The lancet 376 (9745), 991-1023, 2010 | 528 | 2010 |
| Quality maternity care for every woman, everywhere: a call to action M Koblinsky, CA Moyer, C Calvert, J Campbell, OMR Campbell, AB Feigl, ... The Lancet 388 (10057), 2307-2320, 2016 | 471 | 2016 |
| Huge poor-rich inequalities in maternity care: an international comparative study of maternity and child care in developing countries TAJ Houweling, C Ronsmans, OMR Campbell, AE Kunst Bulletin of the World Health Organization 85 (10), 745-754, 2007 | 429 | 2007 |
| Epidemiology of menstrual disorders in developing countries: a systematic review SD Harlow, OMR Campbell Blackwell Science Ltd, 2004 | 425 | 2004 |
| The influence of distance and level of care on delivery place in rural Zambia: a study of linked national data in a geographic information system S Gabrysch, S Cousens, J Cox, OMR Campbell PLoS medicine 8 (1), e1000394, 2011 | 417 | 2011 |
| Organizing delivery care: what works for safe motherhood? MA Koblinsky, O Campbell, J Heichelheim Bulletin of the World Health Organization 77 (5), 399, 1999 | 414 | 1999 |
| High ANC coverage and low skilled attendance in a rural Tanzanian district: a case for implementing a birth plan intervention M Magoma, J Requejo, OMR Campbell, S Cousens, V Filippi BMC pregnancy and childbirth 10, 1-12, 2010 | 342 | 2010 |
| Postpartum depression: prevalence and determinants in Lebanon M Chaaya, OMR Campbell, F El Kak, D Shaar, H Harb, A Kaddour Archives of women's mental health 5, 65-72, 2002 | 328 | 2002 |
| The scale, scope, coverage, and capability of childbirth care OMR Campbell, C Calvert, A Testa, M Strehlow, L Benova, E Keyes, ... The Lancet 388 (10056), 2193-2208, 2016 | 322 | 2016 |
| Voices from the frontline: findings from a thematic analysis of a rapid online global survey of maternal and newborn health professionals facing the COVID-19 pandemic A Semaan, C Audet, E Huysmans, B Afolabi, B Assarag, A Banke-Thomas, ... BMJ global health 5 (6), e002967, 2020 | 300 | 2020 |
| Risk of ovulation during lactation RH Gray, OM Campbell, R Apelo, SS Eslami, H Zacur, RM Ramos, ... The Lancet 335 (8680), 25-29, 1990 | 262 | 1990 |
| Reducing maternal mortality in the developing world: sector-wide approaches may be the key E Goodburn, O Campbell Bmj 322 (7291), 917-920, 2001 | 242 | 2001 |
| Incidence and risk factors for postpartum hemorrhage in Uganda S Ononge, F Mirembe, J Wandabwa, OMR Campbell Reproductive health 13, 1-7, 2016 | 240 | 2016 |
| Women's experiences of maternity care: satisfaction or passivity? T Kabakian-Khasholian, O Campbell, M Shediac-Rizkallah, F Ghorayeb Social science & medicine 51 (1), 103-113, 2000 | 233 | 2000 |
| Not just a number: examining coverage and content of antenatal care in low-income and middle-income countries L Benova, Ö Tunçalp, AC Moran, OMR Campbell BMJ global health 3 (2), e000779, 2018 | 232 | 2018 |
| Impact of user fees on maternal health service utilization and related health outcomes: a systematic review S Dzakpasu, T Powell-Jackson, OMR Campbell Health policy and planning 29 (2), 137-150, 2014 | 209 | 2014 |
| Impact of free delivery care on health facility delivery and insurance coverage in Ghana’s Brong Ahafo Region S Dzakpasu, S Soremekun, A Manu, G Ten Asbroek, C Tawiah, L Hurt, ... PloS one 7 (11), e49430, 2012 | 201 | 2012 |
