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  1. Assessing the quality...
  2. Assessing the quality of research
Education And Debate

Assessing the quality of research

BMJ 2004; 328 doi: https://doi.org/10.1136/bmj.328.7430.39 (Published 01 January 2004) Cite this as: BMJ 2004;328:39

Data supplement

  • References for table

    w1. Pincus G, Rock J, Garcia CR. Field trials with norethynodrel as an oral contraceptive. Report of the proceedings of the sixth international conference on planned parenthood. Reprinted in: Katz J. Experimentation with human beings. New York: Russell Sage Foundation, 1972:745.

    w2. Cook HH, Gamble CJ, Satterthwaite AP. Oral contraception by norethynodrel: a 3-year field study. Am J Obstet Gynecol 1961;82:739-41.

    w3. Chasan-Taber L, Willett WC, Stampfer MJ, Spiegelman D, Rosner BA, Hunter DJ, et al. Oral contraceptives and ovulatory causes of delayed fertility. Am J Epidemiol 1997;146:258-65.

    w4. Proctor ML, Roberts H, Farquhar CM. Combined oral contraceptive pill (OCP) as treatment for primary dysmenorrhoea. Cochrane Database Syst Rev 2003(2):CD002120.

    w5. Collaborative Group on Hormonal Factors in Breast Cancer. Breast cancer and hormonal contraceptives: collaborative reanalysis of individual data on 53 297 women with breast cancer and 100 239 women without breast cancer from 54 epidemiological studies. Lancet 1996;347:1713-27.

    w6. Hannaford PC, Owen-Smith V. Using epidemiological data to guide clinical practice: review of studies on cardiovascular disease and use of combined oral contraceptives. BMJ 1998;316:984-7.

    w7. World Health Organization. Cardiovascular disease and steroid hormone contraception. Geneva: WHO, 1998. (WHO technical report series No 877.)

    w8. Gallo MF, Grimes DA, Schulz KF, Helmerhorst FM. Combination contraceptives: effects on weight. Cochrane Database Syst Rev 2003(2):CD003987.

    w9. Iyer V, Farquhar C, Jepson R. Oral contraceptive pills for heavy menstrual bleeding. Cochrane Database Syst Rev 2003(2):CD000154.

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