APA (7th ed.) Citation

Richter, J. E., & Singh, S. Ambulatory Esophageal pH Monitoring in Gastroesophageal Reflux Disease. Wiley.

Chicago Style (17th ed.) Citation

Richter, Joel E., and Swarnjit Singh. Ambulatory Esophageal PH Monitoring in Gastroesophageal Reflux Disease. Wiley.

MLA (9th ed.) Citation

Richter, Joel E., and Swarnjit Singh. Ambulatory Esophageal PH Monitoring in Gastroesophageal Reflux Disease. Wiley.

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