Influence of Birth Order and Maternal Age on the Human Sex Ratio at Birth

Lignende værker

• The Sex Ratio of Human Births related to Maternal Age
  af: Lowe, C. R., et al.
  Udgivet: (1950)
• Sex ratio of white births in the United States during the second world war
  af: MacMahon, Brian, et al.
  Udgivet: (1954)
• Paternal-age and birth-order effect on the human secondary sex ratio.
  af: Ruder, A
  Udgivet: (1985)
• Limited dependence of the human sex ratio on birth order and parental ages.
  af: Teitelbaum, M S, et al.
  Udgivet: (1971)
• Maternal age and birth order as indices of environmental influence
  af: McKeown, Thomas, et al.
  Udgivet: (1956)