Citação norma APA

Ha, V., & McDonald, S. D. (2017). Pregnant women’s preferences for and concerns about preterm birth prevention: A cross-sectional survey. BMC Pregnancy Childbirth.

Citação norma Chicago

Ha, Vanessa, and Sarah D. McDonald. "Pregnant Women’s Preferences for and Concerns About Preterm Birth Prevention: A Cross-sectional Survey." BMC Pregnancy Childbirth 2017.

Citação norma MLA

Ha, Vanessa, and Sarah D. McDonald. "Pregnant Women’s Preferences for and Concerns About Preterm Birth Prevention: A Cross-sectional Survey." BMC Pregnancy Childbirth 2017.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.