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LETTER TO EDITOR
Year : 2014  |  Volume : 6  |  Issue : 4  |  Page : 188-189

The need for controls in case control studies


Department of Community Medicine, Dr. Rajendra Prasad Government Medical College, Tanda, Kangra - 176 001, Himachal Pradesh, India

Correspondence Address:
Sunil Kumar Raina
Department of Community Medicine, Dr. Rajendra Prasad Government Medical College, Tanda, Kangra - 176 001, Himachal Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1947-2714.131252

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