Letter: Oral contraception and sex ratio at birth

Lancet. 1974 Mar 2;1(7853):369. doi: 10.1016/s0140-6736(74)93141-9.
No abstract available

MeSH terms

  • Blastocyst / immunology
  • Contraceptives, Oral* / adverse effects
  • Embryo Implantation / drug effects
  • Female
  • Histocompatibility / drug effects
  • Humans
  • Immunity, Cellular / drug effects
  • Pregnancy
  • Sex Ratio*

Substances

  • Contraceptives, Oral