title: Correlation between the chemical structure and retention behaviour of C 19 -steroids.
mesh_terms: D000731:Androstanes; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas; D006914:Hydroxysteroids; D007664:Ketosteroids; D013329:Structure-Activity Relationship
chemical_list: D000731:Androstanes; D006914:Hydroxysteroids; D007664:Ketosteroids