DOI:
10.1055/s-00000085
The Thoracic and Cardiovascular Surgeon
LinksClose Window
References
Kroenke K, Spitzer RL, Williams JBW, Löwe B.
An ultra-brief screening scale for anxiety and depression: the PHQ-4.
Psychosomatics 2009;
50 (06) 613-621
We do not assume any responsibility for the contents of the web pages of other providers.