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PGI9 RESPONSIVENESS TO CHANGE AND ENGLISH LANGUAGE VALIDATION OF THE WPAI-GERD QUESTIONNAIRE-RESULTS FROM A CANADIAN STUDY
P Wahlqvist, G Guyatt, D Armstrong, P Austin, A Barkun, N Chiba, A degl'Innocenti, S El-Dika, C Fallone, D Heels-Ansdell, L Tanser, S Veldhuyzen van Zanten, I Wiklund, H SchünemannVolume:
7
Year:
2004
Language:
english
DOI:
10.1016/s1098-3015(10)62465-5
File:
PDF, 49 KB
english, 2004