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Annals of Human Genetics|July 1, 1993
Sex ratio and natural selection in humans: a comparative analysis of two Caucasian populationsL Ulizzi, L A ZontaHuman Biology|February 1, 1995
Factors affecting the sex ratio in humans: multivariate analysis of the Italian populationL Ulizzi, L A ZontaHuman Biology|December 1, 1994
Sex ratio and selection by early mortality in humans: fifty-year analysis in different ethnic groupsL Ulizzi, L A ZontaHuman Biology|March 6, 2003
Sex differential patterns in perinatal deaths in ItalyL Ulizzi, L A ZontaHuman Reproduction (Oxford, England)|November 5, 1999
Risks of preterm delivery and association with maternal age, birth order, and fetal genderP Astolfi, L A ZontaHuman Reproduction (Oxford, England)|December 22, 1999
Reduced male births in major Italian citiesP Astolfi, L A ZontaHuman Biology|May 10, 2000
Natural selection and reproductive behavior in Italy, 1930-1993P Astolfi, L Ulizzi, L A ZontaHuman Reproduction (Oxford, England)|January 15, 2003
Changes in twinning rate: Italy 1950-1996P Astolfi, L Ulizzi, L A ZontaAnnals of Human Genetics|July 11, 1998
Natural selection in industrialized countries: a study of three generations of Italian newbornsL Ulizzi, P Astolfi, L A ZontaPageof 2