On how many days in the last 3 months did you have a headache, if headache lasted more than 1 day, count each day [PhenX]
Type: other
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Overview
On how many days in the last 3 months did you have a headache, if headache lasted more than 1 day, count each day [PhenX] is a medical procedure used to diagnose or treat health conditions.
Procedure pages summarize common use cases, preparation considerations, and what patients can expect during and after the procedure.
Frequently Asked Questions
A medical procedure performed by healthcare professionals to diagnose or treat a condition.