@ARTICLE{a2004,
     Title={A comparison of observational studies and controlled trials of heparin in ulcerative colitis},
     Author={Malhotra S, Kondal A, Shafiq N, Sidhu S, Bhasin DK, Pandhi P},
     Journal={International Journal of Clinical Pharmacology and Therapeutics},
     Volume={42},
     Number={12},
     Pages={690-694},
     Publisher={Dustri-Verlag},
     Year={2004}
}