title: Polyethylene glycol in radioimmunoassay of TSH.
mesh_terms: D011232:Chemical Precipitation; D006801:Humans; D011092:Polyethylene Glycols; D011863:Radioimmunoassay / Q000379:methods*; D013972:Thyrotropin / Q000097:blood*
chemical_list: D011092:Polyethylene Glycols; D013972:Thyrotropin