%0 Journal Article
%K Depression
%K Questionnaires
%B Journal of general internal medicine
%D 2001
%G eng
%N 9
%P 606-13
%T The PHQ-9: validity of a brief depression severity measure.
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1495268/pdf/jgi_01114.pdf
%V 16
%1 <p>http://www.ncbi.nlm.nih.gov/pubmed/11556941?dopt=Abstract</p>