@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}
}