REFERENCES
- Sackett D L, Rosenberg W M, Gray J A, et al. Evidence based medicine: what it is and what it isn't. Br Med J 1996; 312: 71–2
- Ramsey P G, Carline J D, Inui T S, et al. Changes over time in the knowledge base of practicing internists [published erratum appears in J Am Med Assoc 1991;266:3131]. J Am Med Assoc 1991; 266: 1103–7
- Antman E M, Lau J, Kupelnick B, et al. A comparison of results of meta-analyses of randomized control trials and recommendations of clinical experts. Treatments for myocardial infarction. J Am Med Assoc 1992; 268: 240–8
- Crowley P, Chalmers I, Keirse M J. The effects of corticosteroid administration before preterm delivery: an overview of the evidence from controlled trials. Br J Obstet Gynaecol 1990; 97: 11–25
- NIH Consensus Development Panel on the Effect of Corticosteroids for Fetal Maturation on Perinatal Outcomes. Effect of corticosteroids for fetal maturation on perinatal outcomes. J Am Med Assoc 1995; 273: 413–18
- Baggett B, Nash H A. Effects of contraceptive steroids on serum lipoproteins and cardiovascular disease scrutinized at workshop in Bethesda. Contraception 1980; 21: 115–20
- Croft P, Hannaford P. Risk factors for acute myocardial infarction in women [Letter]. Br Med J 1989; 298: 674
- Potts D M, Champion C B, Kozuh-Novak M, et al. IUDs and PID: a comparative trial of strings versus stringless devices. Adv Contracept 1991; 7: 231–40
- Farley T MM, Rosenberg M J, Rowe P, et al. Intra-uterine devices and pelvic inflammatory disease: an international perspective. Lancet 1992; 339: 785–8
- IPPF International Medical Advisory Panel. Statement on contraception for clients who are HIV positive. IPPF Med Bull 1991; 25: 1–2
- Sinei S K, Morrison C S, Sekadde-Kigondu C, et al. Complications of use of intrauterine devices among HIV-1-infected women. Lancet 1998; 351: 1238–41
- Richardson B A, Morrison C S, Sekadde-Kigondu C, et al. Effect of intrauterine device use on cervical shedding of HIV-1 DNA. AIDS 1999; 13: 2091–7
- Soderberg G, Lindgren S. Influence of an intrauterine device on the course of an acute salpingitis. Contraception 1981; 24: 138–43
- Roddy R E, Zekeng L, Ryan K A, et al. A controlled trial of nonoxynol 9 film to reduce male-to-female transmission of sexually transmitted diseases. N Engl J Med 1998; 339: 504–10
- Petersson H B, Xia Z, Hughes J M, et al. The risk of pregnancy after tubal sterilization: findings from the US Collaborative Review of Sterilization. Am J Obstet Gynecol 1996; 174: 1161–8, discussion 1168–70
- Evidence-Based Medicine Working Group. Evidence-based medicine. A new approach to teaching the practice of medicine. J Am Med Assoc 1992; 268: 2420–5
- Oxman A D, Guyatt G H. The science of reviewing research. Ann NY Acad Sci 1993; 703: 125–33, discussion 133–4
- Hannaford P C, Webb A M. Evidence-guided prescribing of combined oral contraceptives: consensus statement. An International Workshop at Mottram Hall, Wilmslow, UK, March 1996. Contraception 1996; 54: 125–9
- Hannaford P, Webb A. Evidence-guided Prescribing of the Pill. Parthenon Publishing, Carnforth, UK 1996
- World Health Organization. Improving Access to Quality Care in Family Planning. Medical Eligibility Criteria for Contraceptive Use. World Health Organization, GenevaSwitzerland 1996
- US Preventive Services Task Force. Guide to Clinical Preventive Services, 2nd edn. Williams & Wilkins, Baltimore, MD 1995
- Bero L, Rennie D. The Cochrane Collaboration. Preparing, maintaining, and disseminating systematic reviews of the effects of health care. J Am Med Assoc 1995; 274: 1935–8
- Shin J H, Haynes R B, Johnston M E. Effect of problem-based, self-directed undergraduation education on life-long learning. Can Med Assoc J 1993; 148: 969–76
- Cheng L, Gulmezoglu A M, Ezcurra E, et al. Interventions for emergency contraception. Cochrane Library 2000, Issue 1