Biliary tract studies.  I.  X-ray diffraction analysis of gallstones; correlation with occurrence of microspheroliths in bile.
D001646:Bile; D001659:Biliary Tract; D002769:Cholelithiasis / Q000473:pathology*; D042882:Gallstones; D006801:Humans; D008853:Microscopy; D014961:X-Ray Diffraction; D014965:X-Rays
BILE; CHOLELITHIASIS/pathology; MICROSCOPY; ROENTGEN RAYS