Amjad, W., Hussain, Q., Ullah, W., & Hurairah, A. (2018). A tough scope to swallow: Endoscopic retrograde cholangiopancreatography through percutaneous endoscopic gastrostomy. Turk J Gastroenterol.
Stile di citazione ChicagoAmjad, Waseem, Qulsoom Hussain, Waqas Ullah, e Abu Hurairah. "A Tough Scope to Swallow: Endoscopic Retrograde Cholangiopancreatography Through Percutaneous Endoscopic Gastrostomy." Turk J Gastroenterol 2018.
Citazione MLAAmjad, Waseem, Qulsoom Hussain, Waqas Ullah, e Abu Hurairah. "A Tough Scope to Swallow: Endoscopic Retrograde Cholangiopancreatography Through Percutaneous Endoscopic Gastrostomy." Turk J Gastroenterol 2018.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.