%0 Journal Article
%K General Earth and Planetary Sciences
%K General Environmental Science
%B BMJ
%D 2021
%G eng
%I BMJ
%P n2183
%R 10.1136/bmj.n2183
%T Accuracy of the Patient Health Questionnaire-9 for screening to detect major depression: updated systematic review and individual participant data meta-analysis
%U https://www.bmj.com/content/375/bmj.n2183.full.pdf