In April 2013, an invitation to participate in the study was
emailed to 4845 members of the QFGP who had a valid email
address and who were practicing in primary care settings. The invitation
letter contained a hyperlink directing the respondents to a
secure Web site that gave them access to the questionnaire. The
Qualtrics platform [33] was used to develop the online questionnaire.
A reminder letter was sent to all the intended respondents
one week after the initial invitation. No financial incentives were
used to maximize response rate