title: Letter: Pitting test and transfusion requirements.
mesh_terms: D000368:Aged; D001795:Blood Pressure Determination; D001803:Blood Transfusion; D002496:Central Venous Pressure; D004487:Edema; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D007263:Infusions, Parenteral; D008875:Middle Aged; D011300:Preoperative Care; D012709:Serum Albumin / Q000032:analysis*
chemical_list: D006454:Hemoglobins; D012709:Serum Albumin