El-Serag, H., & Sonnenberg, A. (1997). Associations between different forms of gastro-oesophageal reflux disease.
Citación estilo ChicagoEl-Serag, H., y A. Sonnenberg. Associations between Different Forms of Gastro-oesophageal Reflux disease. 1997.
Cita MLAEl-Serag, H., y A. Sonnenberg. Associations between Different Forms of Gastro-oesophageal Reflux disease. 1997.
Precaución: Estas citas no son 100% exactas.