title: Amphioxus, a primitive chordate, is on steroids: evidence for sex steroids and steroidogenic enzymes.
authors.affiliation: Department of Medicine, 0693, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0693, USA.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Baker
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002816:Chordata, Nonvertebrate / Q000502:physiology*; D003577:Cytochrome P-450 Enzyme System / Q000502:physiology*; D012739:Gonadal Steroid Hormones / Q000502:physiology*; D006913:Hydroxysteroid Dehydrogenases / Q000502:physiology*
chemical_list: D012739:Gonadal Steroid Hormones; D003577:Cytochrome P-450 Enzyme System; D006913:Hydroxysteroid Dehydrogenases