The body hematocrit/venous hematocrit ratio and the "splenic reservoir".
D001810:Blood Volume; D004912:Erythrocytes; D006400:Hematocrit; D006801:Humans; D013154:Spleen; D013163:Splenomegaly / Q000097:blood*; D014680:Veins
BLOOD VOLUME; ERYTHROCYTES; SPLENOMEGALY/blood