Kupferschmidt, K. (2011). More placebo use promoted in Germany. Canadian Medical Association.
استشهاد بنمط شيكاغوKupferschmidt, Kai. More Placebo Use Promoted in Germany. Canadian Medical Association, 2011.
MLA استشهادKupferschmidt, Kai. More Placebo Use Promoted in Germany. Canadian Medical Association, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.