"Don't look back; something might be gaining on you".
Alpert
Joseph S
JS
D000739:Anecdotes as Topic; D015510:Clinical Medicine / Q000592:standards / Q000639:trends*; D003695:Delivery of Health Care / Q000191:economics; D005544:Forecasting; D006801:Humans; D010818:Practice Patterns, Physicians' / Q000191:economics*; D014481:United States