1825
Table of Contents > Health Dictionary > Longitudinal study

Longitudinal study

A study of the natural course of life or disorder in which a cohort of subjects is serially observed over a period of time and no assumptions need be made about the stability of the system.
Healthy Living Marketplace
Wakunaga of America
North American Herb & Spice
Natural Vitality
American Health
Carlson Labs
Jarrow Formulas