Fig. 2From: Development and exploration of the content validity of a patient-reported outcome measure to evaluate the impact of migraine- the migraine physical function impact diary (MPFID)Conceptual Framework of Version 1.0 of the MPFID. The conceptual framework comprised 17 concepts/items in 3 domain concepts representing impact on every day activities, overall impact on every day activities, and physical impairmentBack to article page