| Delay in the diagnosis of endometriosis: a survey of women from the USA and the UK R Hadfield, H Mardon, D Barlow, S Kennedy Human Reproduction 11 (4), 878-880, 1996 | 629 | 1996 |
| The Natural History of Fetomaternal Alloimmunization to the Platelet-Specific Antigen HPA-1a (PlA1, Zwa) as Determined by Antenatal Screening LM Williamson, G Hackett, J Rennie, CR Palmer, C Maciver, R Hadfield, ... Blood, The Journal of the American Society of Hematology 92 (7), 2280-2287, 1998 | 523 | 1998 |
| Inhaled corticosteroids and COVID-19: a systematic review and clinical perspective DMG Halpin, D Singh, RM Hadfield European Respiratory Journal 55 (5), 2020 | 382 | 2020 |
| Endometriosis in monozygotic twins RM Hadfield, HJ Mardon, DH Barlow, SH Kennedy Fertility and sterility 5 (68), 941-942, 1997 | 288 | 1997 |
| Quality of data in perinatal population health databases: a systematic review SJ Lain, RM Hadfield, CH Raynes-Greenow, JB Ford, NM Mealing, ... Medical care 50 (4), e7-e20, 2012 | 241 | 2012 |
| The accuracy of reporting of the hypertensive disorders of pregnancy in population health data CL Roberts, JC Bell, JB Ford, RM Hadfield, CS Algert, JM Morris Hypertension in pregnancy 27 (3), 285-297, 2008 | 202 | 2008 |
| Linkage and association studies of the relationship between endometriosis and genes encoding the detoxification enzymes GSTM1, GSTT1 and CYP1A1 RM Hadfield, OXEGENE Collaborative Group, S Manek, ... MHR: Basic science of reproductive medicine 7 (11), 1073-1078, 2001 | 166 | 2001 |
| Familial aggregation of endometriosis in a large pedigree of rhesus macaques KT Zondervan, DE Weeks, R Colman, LR Cardon, R Hadfield, J Schleffler, ... Human Reproduction 19 (2), 448-455, 2004 | 131 | 2004 |
| The International Endogene Study: a collection of families for genetic research in endometriosis S Treloar, R Hadfield, G Montgomery, A Lambert, J Wicks, DH Barlow, ... Fertility and sterility 78 (4), 679-685, 2002 | 122 | 2002 |
| Risk factors for endometriosis in the rhesus monkey (Macaca mulatta): a case-control study RM Hadfield, PL Yudkin, CL Coe, J Schefler, H Uno, DH Barlow, ... Human reproduction update 3 (2), 109-115, 1997 | 105 | 1997 |
| Is there an association between endometriosis and the risk of pre-eclampsia? A population based study RM Hadfield, SJ Lain, CH Raynes-Greenow, JM Morris, CL Roberts Human reproduction 24 (9), 2348-2352, 2009 | 101 | 2009 |
| How accurate is the reporting of obstetric haemorrhage in hospital discharge data? A validation study SJ Lain, CL Roberts, RM Hadfield, JC Bell, JM Morris Australian and New Zealand Journal of Obstetrics and Gynaecology 48 (5), 481-484, 2008 | 99 | 2008 |
| The availability, cost, and affordability of essential medicines for asthma and COPD in low-income and middle-income countries: a systematic review M Stolbrink, H Thomson, RM Hadfield, OB Ozoh, R Nantanda, ... The Lancet Global Health 10 (10), e1423-e1442, 2022 | 96 | 2022 |
| The reliability of electronic health record data used for obstetrical research MR Altman, K Colorafi, KB Daratha Applied Clinical Informatics 9 (01), 156-162, 2018 | 96 | 2018 |
| Association between endometriosis and N-acetyl transferase 2 polymorphisms in a UK population S Nakago, RM Hadfield, KT Zondervan, H Mardon, S Manek, DE Weeks, ... MHR: Basic science of reproductive medicine 7 (11), 1079-1083, 2001 | 88 | 2001 |
| Sleep apnea in early childhood associated with preterm birth but not small for gestational age: a population-based record linkage study CH Raynes-Greenow, RM Hadfield, PA Cistulli, J Bowen, H Allen, ... Sleep 35 (11), 1475-1480, 2012 | 85 | 2012 |
| Are babies getting bigger? An analysis of birthweight trends in New South Wales, 1990–2005 RM Hadfield, SJ Lain, JM Simpson, JB Ford, CH Raynes‐Greenow, ... Medical Journal of Australia 190 (6), 312-315, 2009 | 83 | 2009 |
| Age of onset of pain symptoms in non-twin sisters concordant for endometriosis S Kennedy, R Hadfield, H Mardon, D Barlow Human reproduction 11 (2), 403-405, 1996 | 73 | 1996 |
| The prevalence of maternal medical conditions during pregnancy and a validation of their reporting in hospital discharge data RM Hadfield, SJ Lain, CA Cameron, JC Bell, JM Morris, CL Roberts Australian and New Zealand Journal of Obstetrics and Gynaecology 48 (1), 78-82, 2008 | 65 | 2008 |
| Magnetic resonance imaging to assess familial risk in relatives of women with endometriosis S Kennedy, R Hadfield, C Westbrook, DE Weeks, D Barlow, S Golding The Lancet 352 (9138), 1440-1441, 1998 | 61 | 1998 |
