Stewart, R. D., & Sheffield, J. S. (2013). Hepatitis B Vaccination in Pregnancy in the United States. Vaccines (Basel).
Citação norma ChicagoStewart, Robert D., and Jeanne S. Sheffield. "Hepatitis B Vaccination in Pregnancy in the United States." Vaccines (Basel) 2013.
MLA citiranjeStewart, Robert D., and Jeanne S. Sheffield. "Hepatitis B Vaccination in Pregnancy in the United States." Vaccines (Basel) 2013.
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