TY - GEN AU - Hershlag,A AU - Lesser,M AU - Montefusco,D AU - Lavy,G AU - Kaplan,P AU - Liu,H C AU - Rosenfeld,D TI - Interinstitutional variability of follicle-stimulating hormone and estradiol levels SN - 0015-0282 PY - 1993///0114 KW - Estradiol KW - blood KW - Female KW - Follicle Stimulating Hormone KW - Humans KW - Laboratories KW - standards KW - Reagent Kits, Diagnostic KW - Regression Analysis N1 - Publication Type: Comparative Study; Journal Article ER -