RT Journal A1 Evans JP T1 INtrathecal use of methylene blue-reply JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1959 FD August 29 VO 170 IS 18 SP 2232 OP 2232 DO 10.1001/jama.1959.03010180084024 UL http://dx.doi.org/10.1001/jama.1959.03010180084024 AB To the Editor:—  The ampul of methylene blue used in our patient was not kept in a detergent solution, in alcohol, or in phenol; it was used as provided by the manufacturer, the ampul head merely being wiped with iodine before being broken open. I be