00338nam a22001337a 4500020001800000082001600018100002100034245003800055250001200093260004200105300001100147654002500158700002100183  a9788174733351  a001.42bIND  aIndrayan, Abhaya  aBasic methods of medical research  a3rd ed.  aNew DelhibA.I.T.B.S Publishersc2013  a410 p.  aResearch Methodology  aIndrayan, Abhaya