title: The zinc protoporphyrin/heme ratio in premature infants: has it found its place?
authors.forename: Pamela J
authors.initials: PJ
authors.lastname: Kling
mesh_terms: D006418:Heme / Q000378:metabolism*; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007501:Iron / Q000008:administration & dosage / Q000097:blood; D000090463:Iron Deficiencies; D011237:Predictive Value of Tests; D011524:Protoporphyrins / Q000097:blood*; D012156:Reticulocytes / Q000187:drug effects / Q000378:metabolism
chemical_list: D011524:Protoporphyrins; C017803:zinc protoporphyrin; D006418:Heme; D007501:Iron