Questionnaire surveys in medical research.
Mandal
A
A
Gastrointestinal Research Unit, Leicester General Hospital, UK.
Eaden
J
J
Mayberry
M K
MK
Mayberry
J F
JF
D015982:Bias; D019538:Health Care Surveys / Q000379:methods*; D006801:Humans; D020407:Internet; D007407:Interviews as Topic; D012107:Research Design; D011795:Surveys and Questionnaires / Q000592:standards*