Quicker and sicker syndrome: the unidentified villain.
D000368:Aged; D003710:Demography; D003953:Diagnosis-Related Groups / Q000191:economics*; D005260:Female; D005544:Forecasting; D006801:Humans; D008297:Male; D011157:Population Dynamics; D012866:Skilled Nursing Facilities / Q000706:statistics & numerical data*; D014481:United States