Não informado. University of Pennsylvania medical bulletin. University of Pennsylvania, School of Medicine.
Style de citation Chicago (17e éd.)Não informado. University of Pennsylvania Medical Bulletin. Philadelphia, Pa: University of Pennsylvania, School of Medicine.
Style de citation MLA (8e éd.)Não informado. University of Pennsylvania Medical Bulletin. University of Pennsylvania, School of Medicine.
Attention : ces citations peuvent ne pas être correctes à 100%.