2518
History In the mid-1980s , it was believed that Medicare 's then-new hospital prospective payment system using diagnosis-related group s may have led to hospitals ' discharging patients to post-hospital care ( e.g. , skilled nursing facilities ) more quickly than appropriate in order to save money .
 Medicare
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Medicare