title: Letter: Do SPC cells of Whipple's disease circulate in the blood?
mesh_terms: D000368:Aged; D000755:Anemia, Sickle Cell / Q000473:pathology*; D005260:Female; D006801:Humans; D012805:Sickle Cell Trait / Q000473:pathology*; D008061:Whipple Disease / Q000097:blood / Q000473:pathology*