title: Perspective in hematology.
mesh_terms: D001773:Blood Cells / Q000166:cytology; D006405:Hematology / Q000266:history* / Q000639:trends; D006454:Hemoglobins / Q000032:analysis; D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient
chemical_list: D006454:Hemoglobins