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Acta Geneticae Medicae Et Gemellologiae|January 1, 1979
The twinning incidence of NigeriaP P NylanderActa Geneticae Medicae Et Gemellologiae|January 1, 1981
The factors that influence twinning ratesP P NylanderAnnals of Human Genetics|January 1, 1977
Placentation and zygosity of twins in Northern NigeriaP P Nylander, G CorneyBailliere'S Clinical Obstetrics and Gynaecology|March 1, 1990
Antenatal care in developing countriesP P Nylander, A O AdekunlePageof 1