doc1 - Indian Journal of Gastroenterologyindianjgastro.com/IJG_pdf/apr1997/49-51.pdf ·...
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doc1 - Indian Journal of Gastroenterologyindianjgastro.com/IJG_pdf/apr1997/49-51.pdf · Co«espondm.nce to: Prof—or Supe 1996. in torm January 25, 1997. Accepted Januuy 27, 1997