Effect of Assortative Mating and Family Planning of the Incidence of Unisexsual Sibships |
Interrelation between Paternal Age and the Human Sex Ratio. A Confirmation of Novitski's Theorem |
Is there a Relation between the Dichotomy of Aging and the Dichotomy of the Human Sex Ratio? |
Sex Distribution in Sibships According to Occupation of Parents |