TY - GEN AU - Kuhn,M AU - Naftolin,F TI - Letter: Leakage of radioactivity through polyethylene tubes SN - 0009-9147 PY - 1975///1212 KW - Equipment and Supplies KW - Follicle Stimulating Hormone KW - immunology KW - Iodine Radioisotopes KW - Polyethylenes KW - Proteins KW - analysis KW - Radioimmunoassay KW - methods KW - Temperature KW - Time Factors N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S ER -