The occurrence of pernicious anemia and polycythemia in the same patient.
D000740:Anemia; D000752:Anemia, Pernicious / Q000150:complications*; D006801:Humans; D011086:Polycythemia / Q000150:complications*; D064028:Tracheophyta
ANEMIA, PERNICIOUS/complications; POLYCYTHEMIA/complications