Additional file 2: of Building a recruitment database for asthma trials: a conceptual framework for the creation of the UK Database of Asthma Research Volunteers NwaruBright SoyiriIreneous SimpsonColin GriffithsChris SheikhAziz 2016 Information collected when enrolling into the platform. This contains the questionnaire used for enrolment into the database. (DOCX 22 kb)