Cite

    J R Walters et al.. “Combination therapy with oral ursodeoxycholic and chenodeoxycholic acids: pretreatment computed tomography of the gall bladder improves gall stone dissolution efficacy..” Gut, vol. 33, no. 3, 1992, pp. 375–380. http://access.bl.uk/ark:/81055/vdc_100137792994.0x000044