Perkins, S. L., Belcher, J. M., & Livesey, J. F. (1997). A Canadian Tertiary Care Centre Study of Maternal and Umbilical Cord Cotinine Levels as Markers of Smoking During Pregnancy: Relationship to Neonatal Effects. Can J Public Health.
Citação norma ChicagoPerkins, Sherry L., Judy M. Belcher, and John F. Livesey. "A Canadian Tertiary Care Centre Study of Maternal and Umbilical Cord Cotinine Levels As Markers of Smoking During Pregnancy: Relationship to Neonatal Effects." Can J Public Health 1997.
Citação norma MLAPerkins, Sherry L., Judy M. Belcher, and John F. Livesey. "A Canadian Tertiary Care Centre Study of Maternal and Umbilical Cord Cotinine Levels As Markers of Smoking During Pregnancy: Relationship to Neonatal Effects." Can J Public Health 1997.