RT Journal A1 Jones CR, Jr. T1 INtestinal obstruction after colloidal aluminum hydroxide JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1939 FD December 9 VO 113 IS 24 SP 2169 OP 2169 DO 10.1001/jama.1939.02800490064021 UL http://dx.doi.org/10.1001/jama.1939.02800490064021 AB To the Editor:—  In The Journal October 21, page 1564, appears the report of a case of intestinal obstruction supposedly caused by colloidal aluminum hydroxide. There is much additional information to be desired to that contained in this report. First, what was the diet of the patient while she was receiving the continuous intragastric drip of aluminum hydroxide? From the author's description the material found to be obstructing the small bowel would seem as likely to have been composed of milk curds as anything else. If the patient was largely on a milk diet and the milk was unmodified by the addition of lactose and sodium citrate the formation of curds could be expected. Secondly, if it was to be proved that the aluminum hydroxide caused the obstruction why not present a chemical analysis of the obstructing material? These are two points which need further elucidation by the author.It