Paré, P., Meyer, F., Armstrong, D., Pyzyk, M., Pericak, D., & Ron, G. Validation of the GSFQ, a Self-Administered Symptom Frequency Questionnaire for Patients with Gastroesophageal Reflux Disease. Wiley.
Chicago Style (17th ed.) CitationParé, Pierre, François Meyer, David Armstrong, Myron Pyzyk, Dan Pericak, and Goeree Ron. Validation of the GSFQ, a Self-Administered Symptom Frequency Questionnaire for Patients with Gastroesophageal Reflux Disease. Wiley.
MLA (9th ed.) CitationParé, Pierre, et al. Validation of the GSFQ, a Self-Administered Symptom Frequency Questionnaire for Patients with Gastroesophageal Reflux Disease. Wiley.
Warning: These citations may not always be 100% accurate.