doi:10.1016/s0003-4975(97)01432-xShiv Kumar Choudhary MChAnil Bhan MChSubhash Chandra Bose Reddy DMRajesh Sharma MChVivek Murari FRCSEdBalram Airan MChArkalgud Sampath Kumar MChPanangipalli Venugopal MChAnnals of Thoracic Surgery