(Q44456939)
Statements
1 reference
Validation of the GSFQ, a self-administered symptom frequency questionnaire for patients with gastroesophageal reflux disease (English)
1 reference
Pierre Paré
1 reference
François Meyer
1 reference
David Armstrong
1 reference
Myron Pyzyk
1 reference
Dan Pericak
1 reference
Ron Goeree
1 reference
1 May 2003
1 reference
17
1 reference
5
1 reference
307-312
1 reference
1 reference
Identifiers
1 reference
1 reference