Methodology of controlled clinical trial in pulmonary tuberculosis
Devadatta, S. (1970) Methodology of controlled clinical trial in pulmonary tuberculosis. Indian Journal of Tuberculosis, 17 (3). pp. 100-110.
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This article has discussed the details of the methods employed in a controlled clinical trial which is in fact a planned scientific experiment. It should be emphasised that the essence of a successful trial lies in painstaking attention to every detail; a badly planned or executed trial, because it may give misleading answers, is worse than no trial at a l l . On the other hand, a well planned trial meticulously executed can yield clear-cut information on any treatment in a remarkably short space of time. For example, accurate information was obtained on the efficacy of isoniazid in active pulmonary taberculosis in little over than 18 months whereas prior to that over a period of 15 years, conflicting and unestablished opinions were being expressed concerning the value of gold therapy in this disease (Fox 1954).
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