Further testing of the reliability and validity of the ASK-20 adherence barrier questionnaire in a medical center outpatient population

Abstract
(2008). Further testing of the reliability and validity of the ASK-20 adherence barrier questionnaire in a medical center outpatient population. Current Medical Research and Opinion: Vol. 24, No. 11, pp. 3197-3206. doi: 10.1185/03007990802463642