Phase II of the Nurses Health Study was started in 1989 with 116,000 female registered nurses. The

Question:

Phase II of the Nurses’ Health Study was started in 1989 with 116,000 female registered nurses. The study is ongoing.


Indicate whether the observational study used is cross-sectional, retrospective, or prospective.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  answer-question
Question Posted: