Skip the Supplements 17 Eylül 2015 tarihinde Wayback Machine sitesinde arşivlendi., Paul A. Offit, chief of the division of infectious diseases at the Children’s Hospital of Philadelphia, and Sarah Erush, the clinical manager in the pharmacy department of the Children’s Hospital of Philadelphia. The New York Times, December 14, 2013.
web.archive.org
Skip the Supplements 17 Eylül 2015 tarihinde Wayback Machine sitesinde arşivlendi., Paul A. Offit, chief of the division of infectious diseases at the Children’s Hospital of Philadelphia, and Sarah Erush, the clinical manager in the pharmacy department of the Children’s Hospital of Philadelphia. The New York Times, December 14, 2013.