Essays on Van Valkenberg

Anxiety and depression disorders
... or mixed states of depression and anxiety may represent a more serious psychological disorder than just depression or anxiety alone Van Valkenberg et al, 1984 ...
(1000 Words -- Approx. 4 Pages)
The Problem of Substance Abuse
... and effective detection process to identify substanceabusing health professionals who do not identify themselves Trinkoff ampamp Storr, 1998 Van Valkenberg, 1998 ...
(3703 Words -- Approx. 15 Pages)

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