https://www.selleckchem.com/pr....oducts/FK-506-(Tacro
A concept elicitation, cognitive debriefing, and usability study was undertaken to (1) explore migraine symptoms and day-to-day impacts; (2) determine the comprehensiveness and comprehensibility of the previously developed 24-Hour Migraine Quality of Life Questionnaire electronic patient-reported outcome (24-Hr MQoLQ ePRO) items, and the appropriateness and understanding of the recall period, response options, and instructions; and (3) assess the usability on an electronic hand-held device. Eleven United States English-speak