Letter: Leakage of radioactivity through polyethylene tubes.
D004864:Equipment and Supplies; D005640:Follicle Stimulating Hormone / Q000276:immunology; D007457:Iodine Radioisotopes; D011095:Polyethylenes; D011506:Proteins / Q000032:analysis*; D011863:Radioimmunoassay / Q000379:methods; D013696:Temperature; D013997:Time Factors
D007457:Iodine Radioisotopes; D011095:Polyethylenes; D011506:Proteins; D005640:Follicle Stimulating Hormone