title: Introducing classics.
authors.forename: Kathryn
authors.initials: K
authors.lastname: Knight
mesh_terms: D000641:Ammonia / Q000378:metabolism; D000818:Animals; D001695:Biology / Q000193:education / Q000266:history*; D035081:Editorial Policies; D005399:Fishes / Q000378:metabolism; D005880:Gills / Q000378:metabolism; D049673:History, 20th Century; D049674:History, 21st Century; D010506:Periodicals as Topic / Q000266:history; D014508:Urea / Q000378:metabolism
chemical_list: D000641:Ammonia; D014508:Urea