| Cancer risk among users of oral contraceptives: cohort data from the Royal College of General Practitioner's oral contraception study PC Hannaford, S Selvaraj, AM Elliott, V Angus, L Iversen, AJ Lee Bmj 335 (7621), 651, 2007 | 562 | 2007 |
| Risk factors for acute myocardial infarction in women: evidence from the Royal College of General Practitioners' oral contraception study. P Croft, PC Hannaford British Medical Journal 298 (6667), 165-168, 1989 | 441 | 1989 |
| Lifetime cancer risk and combined oral contraceptives: the Royal College of General Practitioners’ Oral Contraception Study L Iversen, S Sivasubramaniam, AJ Lee, S Fielding, PC Hannaford American journal of obstetrics and gynecology 216 (6), 580. e1-580. e9, 2017 | 367 | 2017 |
| Mortality among contraceptive pill users: cohort evidence from Royal College of General Practitioners’ Oral Contraception Study PC Hannaford, L Iversen, TV Macfarlane, AM Elliott, V Angus, AJ Lee Bmj 340, 2010 | 363 | 2010 |
| Mortality associated with oral contraceptive use: 25 year follow up of cohort of 46 000 women from Royal College of General Practitioners' oral contraception study V Beral, C Hermon, C Kay, P Hannaford, S Darby, G Reeves Bmj 318 (7176), 96-100, 1999 | 361 | 1999 |
| Cardiovascular sequelae of toxaemia of pregnancy. P Hannaford, S Ferry, S Hirsch Heart 77 (2), 154-158, 1997 | 297 | 1997 |
| Oral contraceptive use and malignancies of the genital tract: results from the Royal College of General Practitioners' Oral Contraception Study V Beral, P Hannaford, C Kay The Lancet 332 (8624), 1331-1335, 1988 | 250 | 1988 |
| The influence of oral contraceptives on the risk of multiple sclerosis M Thorogood, PC Hannaford BJOG: An International Journal of Obstetrics & Gynaecology 105 (12), 1296-1299, 1998 | 207 | 1998 |
| Oral contraception and stroke. Evidence from the Royal College of General Practitioners' Oral Contraception Study. PC Hannaford, PR Croft, CR Kay Stroke 25 (5), 935-942, 1994 | 202 | 1994 |
| Carpal tunnel syndrome: a nested case-control study of risk factors in women S Ferry, P Hannaford, M Warskyj, M Lewis, P Croft American journal of epidemiology 151 (6), 566-574, 2000 | 189 | 2000 |
| Ovarian cancer and smoking: individual participant meta-analysis including 28 114 women with ovarian cancer from 51 epidemiological studies Collaborative Group on Epidemiological Studies of Ovarian Cancer The Lancet Oncology 13 (9), 946-956, 2012 | 183 | 2012 |
| Breast cancer and the pill–a further report from the Royal College of General Practitioners' oral contraception study CR Kay, PC Hannaford British journal of cancer 58 (5), 675-680, 1988 | 174 | 1988 |
| Oral contraceptive pill use and fractures in women: a prospective study C Cooper, P Hannaford, P Croft, CR Kay Bone 14 (1), 41-45, 1993 | 147 | 1993 |
| Factors associated with age of onset and type of menopause in a cohort of UK women AJ Pokoradi, L Iversen, PC Hannaford American journal of obstetrics and gynecology 205 (1), 34. e1-34. e13, 2011 | 102 | 2011 |
| Managing low back pain presenting to primary care: where do we go from here? GJ Macfarlane, GT Jones, PC Hannaford Pain 122 (3), 219-222, 2006 | 97 | 2006 |
| Prevalence and characteristics associated with use of hormone replacement therapy in Britain T Moorhead, P Hannaford, M Warskyj BJOG: An International Journal of Obstetrics & Gynaecology 104 (3), 290-297, 1997 | 91 | 1997 |
| Oral contraceptives and rheumatoid arthritis: new data from the Royal College of General Practitioners' oral contraception study. PC Hannaford, CR Kay, S Hirsch Annals of the rheumatic diseases 49 (10), 744-746, 1990 | 82 | 1990 |
| Use of exogenous hormones by women and lung cancer: evidence from the Royal College of General Practitioners' Oral Contraception Study AM Elliott, PC Hannaford Contraception 73 (4), 331-335, 2006 | 70 | 2006 |
| Is all chronic pain the same? A 25-year follow-up study P Croft, M Lewis, P Hannaford Pain 105 (1-2), 309-317, 2003 | 69 | 2003 |
| Combined oral contraceptives and liver disease PC Hannaford, CR Kay, MP Vessey, R Painter, J Mant Contraception 55 (3), 145-151, 1997 | 66 | 1997 |
