TY - BOOK AU - Wartofsky, Leonard TI - Requirement for mass spectrometry sex steroid assays in the Journal of Clinical Endocrinology and Metabolism SN - 0021-972X PY - 2013/// KW - *Gonadal Steroid Hormones/an [Analysis] KW - *Mass Spectrometry KW - Editorial Policies KW - Humans KW - Immunoassay KW - MedStar Washington Hospital Center KW - Medicine/Endocrinology KW - Editorial N1 - Available online from MWHC library: 1997 - present, Available in print through MWHC library: 1999 - 2006 UR - http://dx.doi.org/10.1210/jc.2013-3375 ER -