Social & Preventive Medicine A total of 5000 pts of glaucoma are identified and surveyed by pts. interviews regarding family history of glaucoma. Such a study design is called – A Case series report B Case control study C Clinical trial D Cohort study 💡 Explanation A total of 5000 pts of glaucoma are identified and surveyed by pts. interviews regarding family history of glaucoma. Such a study design is called - ✓ Correct Answer: A. Case series report