A total of 5000 patients of glaucoma are identified and surveyed by patient interviews regarding family history of glaucoma. Such a study design is called-

Social & Preventive Medicine

A total of 5000 patients of glaucoma are identified and surveyed by patient interviews regarding family history of glaucoma. Such a study design is called-

A study is to be conducted with regards to the fat content…

'There has been a gradual increase in number of non-communicable disease cases…

All of the following are done to remove Confounding except