A. Basim A., N. H. . Jassam, and H. O. . Al-Obaidi, “Calculation of the Lémann index at initial Presentation of Crohn’s disease in a sample of Iraqi patients attending gastroenterology and hepatology teaching hospital ”, J Popl Ther Clin Pharmacol, vol. 28, no. 01, pp. 46–55, Sep. 2021, doi: 10.47750/jptcp.2021.834 .