Document NGMg3zgqXQZq0994356V9Godp

L . E. C U R T I S, M . D . MEDICAL DIRECTOR 225 BUSH STREET SAM FRANCISCO 20. CALIFORNIA January 12, 1961 TETRAMETHL LEADSTUDY 131.31 RICH A RD D ILLO N . M . D. REGIONAL PHYSICIAN 605 WEST OLYMPIC BOULEVARD LOS ANGELES 54, CALIFORNIA D r. R. A. Kehoe Kettering Laboratory College of Medicine - Ellen Avenue University of Cincinnati Cincinnati 19, Ohio D ear Dr. Kehoe: We have reviewed the results of the blood and urine studies in connection with the Tetramethyl Program and find absolutely nothing to be of concern to us. We wonder if it would be out of order for us, at this time, to start obtaining the third urine specimens and, at the same time, obtain the blood specimen, with the idea of discontinuing this program with the total of three urine specimens at approximately three months' inter vals and two blood specimens with approximately nine months between them. In view of the completely negative findings, it does not seem to me warranted to go to the expense of another complete examination with chest X-ray, etc. to compare with the one done at the beginning of the program. I would appreciate your thoughts in this matter. Very truly yours, LEC:m r L. E. CURTI S, M. D KE 0002932