Social & Preventive Medicine Which is the study design of choice for finding out circadian variation of fat content in expressed breast milk of mother of preterm babies:- A Prospective Cohort B Ambispective Cohort C Case control D Cross sectional 💡 Explanation Which is the study design of choice for finding out circadian variation of fat content in expressed breast milk of mother of preterm babies:- ✓ Correct Answer: A. Prospective Cohort