Cha, D.Y., Song, I.K., Choi, H.W., Chung, E.A, Shin, B.S., Song, Y.W., Lee, S.M., Kim, H.M., Kim, Y.K., Lee, Y.H., Lee, G.S. (2002)Successful elimination of Ascaris lumbricoides from the gallbladder by conservative medical therapy, J Gastroenterol. , 37(9), pp. 758-60.