Cita APA

Friedel, D., Modayil, R., Iqbal, S., Grendell, J. H., & Stavropoulos, S. N. (2013). Per-oral endoscopic myotomy for achalasia: An American perspective. Baishideng Publishing Group Co., Limited.

Citación estilo Chicago

Friedel, David, Rani Modayil, Shahzad Iqbal, James H. Grendell, y Stavros N. Stavropoulos. Per-oral Endoscopic Myotomy for Achalasia: An American Perspective. Baishideng Publishing Group Co., Limited, 2013.

Cita MLA

Friedel, David, et al. Per-oral Endoscopic Myotomy for Achalasia: An American Perspective. Baishideng Publishing Group Co., Limited, 2013.