APA (7th ed.) Citation

MacKalski, B. A., & Ilnyckyj, A. Esophageal pH Testing in Patients Refractory to Proton Pump Inhibitor Therapy. Wiley.

Chicago Style (17th ed.) Citation

MacKalski, Barbara A., and Alexandra Ilnyckyj. Esophageal PH Testing in Patients Refractory to Proton Pump Inhibitor Therapy. Wiley.

MLA (9th ed.) Citation

MacKalski, Barbara A., and Alexandra Ilnyckyj. Esophageal PH Testing in Patients Refractory to Proton Pump Inhibitor Therapy. Wiley.

Warning: These citations may not always be 100% accurate.