The Effect of Obesity on Cardiac Rehabilitation in Patients who have Undergone Coronary Artery Bypass Graft Surgery (CABG) at National Hospital of Sri Lanka (NHSL), M.K.J.K.B. Dharmapriya, M.D.C. Silva, D.M.A.K. Bandara, M.C.R. Ranasinghe, M.P.M. Weerathunge, R.A.N.K. Wijesinghe, International Journal Of Pure Medical Research, Volume : 2, Issue : 3, March - 2017