APA citiranje

Pei, L., Kang, Y., Zhao, Y., & Yan, H. (2017). Prevalence and risk factors of congenital heart defects among live births: A population-based cross-sectional survey in Shaanxi province, Northwestern China. BMC Pediatr.

Citação norma Chicago

Pei, Leilei, Yijun Kang, Yaling Zhao, and Hong Yan. "Prevalence and Risk Factors of Congenital Heart Defects Among Live Births: A Population-based Cross-sectional Survey in Shaanxi Province, Northwestern China." BMC Pediatr 2017.

MLA citiranje

Pei, Leilei, Yijun Kang, Yaling Zhao, and Hong Yan. "Prevalence and Risk Factors of Congenital Heart Defects Among Live Births: A Population-based Cross-sectional Survey in Shaanxi Province, Northwestern China." BMC Pediatr 2017.