RT Journal Article SR Electronic T1 Why and how to apply exploratory sequential mixed methods in health-related psychometric research JF BMJ Supportive & Palliative Care JO BMJ Support Palliat Care FD British Medical Journal Publishing Group SP bmjspcare-2021-003170 DO 10.1136/bmjspcare-2021-003170 A1 Mehrdad Amir-Behghadami A1 Homayon Sadeghi-Bazarghani YR 2021 UL http://spcare.bmj.com/content/early/2021/05/18/bmjspcare-2021-003170.abstract AB