The Cultural Supplement: A New Method for Assessing Culturally Relevant Prolonged Grief Disorder Symptoms.

To date, this is the first PGD questionnaire based on the ICD-11, and the first to include a cultural supplement that can be adapted to different contexts and groups. This cultural supplement will provide clinicians and researchers an easy-to-use assessment tool with the aim to improve the global applicability of the ICD-11 PGD definition.