Source:http://linkedlifedata.com/resource/umls/id/C0373704
MSH: A 21-carbon steroid, derived from CHOLESTEROL and found in steroid hormone-producing tissues. Pregnenolone is the precursor to GONADAL STEROID HORMONES and the adrenal CORTICOSTEROIDS.,CSP: 21-carbon steroid, derived from cholesterol and found in steroid hormone-producing tissues.