title: A review of hematology studies associated with space flight.
mesh_terms: D018504:Ecological Systems, Closed; D004911:Erythrocyte Volume; D004912:Erythrocytes / Q000648:ultrastructure; D006801:Humans; D008297:Male; D010953:Plasma Volume; D013026:Space Flight; D013997:Time Factors; D014893:Weightlessness