Why is the sex ratio falling in England and Wales?

Lignende værker

• Decline in sex ratios at birth, England and Wales, 1973-90.
  af: Dickinson, H O, et al.
  Udgivet: (1997)
• The decline in sex ratios at birth, England and Wales, 1973-90.
  af: James, W H
  Udgivet: (1996)
• The sex ratio of children in relation to paternal preconceptional radiation dose: a study in Cumbria, northern England.
  af: Dickinson, H O, et al.
  Udgivet: (1996)
• Sex ratio in relation to fathers' occupations.
  af: Dickinson, H O, et al.
  Udgivet: (1997)
• NO BABY BOOM OR SEX RATIO CHANGES FOLLOWING FIFTY SHADES OF GREY IN ENGLAND AND WALES
  af: Grech, Victor
  Udgivet: (2017)