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In the abstract " 'Demerol' and Onium Alkaloids in Biliary Spasm," in The Journal, July 24, 1948, page 1163, the last sentence should read "as the pain is due to biliary obstruction other than spasm relief will not be afforded by the nitrites; morphine or meperidine may be given for the relief of this type of pain." In the abstract the last part of this sentence had been deleted.
"Demerol.". JAMA. 1948;137(18):1613. doi:10.1001/jama.1948.02890520045020