title: Relative heart weight in porpoises.
mesh_terms: D000818:Animals; D001810:Blood Volume; D004911:Erythrocyte Volume; D006321:Heart / Q000033:anatomy & histology* / Q000502:physiology; D008433:Mathematics; D009929:Organ Size; D010100:Oxygen / Q000097:blood; D019576:Porpoises / Q000033:anatomy & histology* / Q000097:blood / Q000502:physiology
chemical_list: D010100:Oxygen