Is the natural twinning rate still declining?

Epidemiology. 2005 Jul;16(4):591-2. doi: 10.1097/01.ede.0000165816.03286.c7.
No abstract available

Publication types

  • Letter

MeSH terms

  • Age Factors
  • Cohort Studies
  • Denmark
  • Female
  • Fertility / drug effects*
  • Fertility Agents / administration & dosage
  • Humans
  • Infertility / drug therapy
  • Pregnancy
  • Pregnancy, Multiple / drug effects
  • Pregnancy, Multiple / statistics & numerical data*
  • Registries
  • Reproductive Techniques, Assisted*
  • Twins*

Substances

  • Fertility Agents