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Cumbe, Vasco F. J., Alberto Muanido, Maria Nélia Manaca, Hélder Fumo, Pedro Chiruca, Leecreesha Hicks, Jair de Jesus Mari, and Bradley H. Wagenaar. "Validity and Item Response Theory Properties of the Patient Health Questionnaire-9 for Primary Care Depression Screening in Mozambique (PHQ-9-MZ)." BMC Psychiatry 2020.

Cumbe, Vasco F. J., et al. "Validity and Item Response Theory Properties of the Patient Health Questionnaire-9 for Primary Care Depression Screening in Mozambique (PHQ-9-MZ)." BMC Psychiatry 2020.