[Qualitative analysis of gallstones based on their ultrasonic properties].
Yazawa
T
T
Tsuchiya
Y
Y
Saisho
H
H
Ohto
M
M
D002769:Cholelithiasis / Q000145:classification / Q000175:diagnosis*; D006801:Humans; D012189:Retrospective Studies; D014463:Ultrasonography