Myotonia atrophica and cyanosis.
D000368:Aged; D003490:Cyanosis / Q000209:etiology*; D006801:Humans; D009223:Myotonic Dystrophy / Q000150:complications*; D011086:Polycythemia / Q000150:complications*
CYANOSIS/etiology and pathogenesis; MYOTONIA ATROPHICA/complications; POLYCYTHEMIA/complications