Purdy, A. C., Smith, B. R., Hohmann, S. F., & Nguyen, N. T. (2021). The impact of the novel coronavirus pandemic on gastrointestinal operative volume in the United States. Surg Endosc.
استشهاد بنمط شيكاغوPurdy, Amanda C., Brian R. Smith, Samuel F. Hohmann, و Ninh T. Nguyen. "The Impact of the Novel Coronavirus Pandemic On Gastrointestinal Operative Volume in the United States." Surg Endosc 2021.
MLA استشهادPurdy, Amanda C., Brian R. Smith, Samuel F. Hohmann, و Ninh T. Nguyen. "The Impact of the Novel Coronavirus Pandemic On Gastrointestinal Operative Volume in the United States." Surg Endosc 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.