Case series report is a type of -
Ans. is 'c' i.e., Observational study A) Observational studiesi) Descriptive studies : Case reports, case series.ii) Analytic studies: Case-control (case-reference), Cohort (follow-up), Ecological (correlational), Cross-sectional.B) Experimental/intervention studiesi) Randomized controlled trials/clinical trials. ii) Field trials.iii) Community trials.iv) Animal studies.
Analytic study
Experimental study
Observational study
Intervention study
Epidemiology