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Singh S, Bansal A, Gupta A, Kumar RM, Mittal BR.Singh S, et al.Int Heart J. 2005 Jul;46(4):679-89. doi: 10.1536/ihj.46.679.Int Heart J. 2005.PMID: 16157959Free article.
Mitra A, Singh S, Devidayal, Khullar M.Mitra A, et al. Among authors: singh s.Int Heart J. 2005 Sep;46(5):811-7. doi: 10.1536/ihj.46.811.Int Heart J. 2005.PMID: 16272772Free article.