PCs or paper-and pencil:online surveys for data collection.
Wharton
Christopher M
CM
Department of Nutrition, Arizona State University, Mesa., USA.
Hampl
Jeffrey S
JS
Hall
Rick
R
Winham
Donna M
DM
D003142:Communication; D003625:Data Collection / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D006801:Humans; D020407:Internet; D018401:Sample Size; D011795:Surveys and Questionnaires