The COVID-19 Health Care Workers (HEROES) Study is an international collaboration of more than 20 countries across five continents (America, Europe, Africa, Asia, and Oceania), established to study the short- and medium-term impact of the COVID-19 pandemic on the mental health and wellbeing of he
This project will explore the relationship between child maltreatment, mental disorders and opioid dependence in people that use illicit opioids, like heroin, and those prescribed opioids for chronic non-cancer pain.
In this study, we will undertake detailed analyses of the largest cross-national epidemiologic study of mental and substance use disorders ever conducted. The WHO World Mental Health Survey (WMHS) initiative is a massive, unique endeavour.
