title: Conducting placebo controlled randomized trials.
authors.affiliation: Department of Community Medicine, Dr R.P. Government Medical College, Tanda 176 001, Kangra, Himachal Pradesh, India.
authors.forename: Sunil Kumar
authors.initials: SK
authors.lastname: Raina
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D014397:Tuberculosis, Pulmonary / Q000097:blood*; D014807:Vitamin D / Q000097:blood*; D014808:Vitamin D Deficiency / Q000097:blood*
chemical_list: D014807:Vitamin D