title: e-Stamp vignette on medical science. Ludwik Hirszfeld--Polish immunologist, microbiologist, and hematologist.
authors.forename: Eugene Joseph
authors.initials: EJ
authors.lastname: Kucharz
authors.forename: Marc A
authors.initials: MA
authors.lastname: Shampo
authors.forename: Robert A
authors.initials: RA
authors.lastname: Kyle
mesh_terms: D000486:Allergy and Immunology / Q000266:history; D006405:Hematology / Q000266:history; D049673:History, 20th Century; D008829:Microbiology / Q000266:history; D010678:Philately; D011044:Poland