Letter: Oral contraceptives and health.

Eitemau Tebyg

• ORAL-CONTRACEPTIVES AND HEALTH
  gan: Beral, V
  Cyhoeddwyd: (1974)
• Mortality among oral-contraceptive users. Royal College of General Practitioners' Oral Contraception Study.
  gan: Beral, V
  Cyhoeddwyd: (1977)
• Mortality in women on oral contraceptives.
  gan: Beral, V, et al.
  Cyhoeddwyd: (1977)
• Further analyses of mortality in oral contraceptive users. Royal College of General Practitioners' Oral Contraception Study.
  gan: Layde, P, et al.
  Cyhoeddwyd: (1981)
• Oral contraception and genital tract malignancy.
  gan: Kay, C, et al.
  Cyhoeddwyd: (1989)