Past Seven Days Frequency of Nausea

A question about an individual's frequency of diarrhea over the past seven days.

A question about how much an individual's decreased appetite interfered with usual or daily activities over the past seven days.

A period of time consisting of the 6 months before the present.

A period of time consisting of the 28 days before the present.

Before the present time.

A secret set of characters, numbers, or symbols used as a form of authentication.