PubMed ID: 9331189
Author(s): Klein R, Klein BE. How should we evaluate a cohort study? Study design. Ophthalmology. 1997 Oct;104(10):1533-4.
Journal: Ophthalmology, Volume 104, Issue 10, Oct 1997
PubMed ID: 9331189
Author(s): Klein R, Klein BE. How should we evaluate a cohort study? Study design. Ophthalmology. 1997 Oct;104(10):1533-4.
Journal: Ophthalmology, Volume 104, Issue 10, Oct 1997