Zung questionnaire is a useful complement in the diagnosis
of depression; it is in no way a substitute for an interview
with a doctor.
Requirements (avoid frustration by reading these).
(in the options or preferences section of your browser).
All 20 questions need to be answered or the form will
reset itself. (If this happens, you can use the BACK button
on your browser to return to the questions you have already
this page to a friend
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