Mattress crackles and diaphragm crackles: misleading physical signs with easy correctives.
Henry
H
Schneiderman
D000368:Aged; D001513:Beds; D003937:Diagnosis, Differential; D003964:Diaphragm; D006801:Humans; D011187:Posture; D012135:Respiratory Sounds / Q000209:etiology*