Red Army | International Red Cross and Red Crescent Movement | American Red Cross | Red Hot Chili Peppers | Red Sea | Red Star Belgrade | Red | Little Red Riding Hood | Detroit Red Wings | Red Bull | Red River | Red Hat | Red Dwarf | International Committee of the Red Cross | Red River of the North | New York Red Bulls | IUCN Red List | Simply Red | Red Wing, Minnesota | Red Skelton | Red Army Faction | Red Fort | Pokémon Red and Blue | Red Deer, Alberta | Red Deer | International Federation of Red Cross and Red Crescent Societies | Red Square | Rudolph the Red-Nosed Reindeer | Red-necked Stint | British Red Cross |
Heitzmann is credited for being the first physician to describe the precursor corpuscles of red cells, structures that he referred to as hematoblasts.