title: The giant common duct stone: still a hard nut to crack.
mesh_terms: D002404:Catheterization; D004492:Edetic Acid / Q000627:therapeutic use; D004987:Ethers / Q000627:therapeutic use; D042882:Gallstones / Q000628:therapy*; D006801:Humans; D053685:Laser Therapy; D008096:Lithotripsy; D017602:Lithotripsy, Laser; D008738:Methyl Ethers; D012997:Solvents / Q000627:therapeutic use; D013105:Sphincterotomy, Transduodenal
chemical_list: D004987:Ethers; D008738:Methyl Ethers; D012997:Solvents; C043243:methyl tert-butyl ether; D004492:Edetic Acid