Cardiovascular studies by PHC4 and KePRO are very different.
Harrop
D E
DE
Keystone Peer Review Organization (KePRO), USA.
D015982:Bias; D003362:Cost-Benefit Analysis; D003625:Data Collection; D006801:Humans; D009203:Myocardial Infarction / Q000191:economics* / Q000401:mortality; D010380:Peer Review; D010414:Pennsylvania; D011785:Quality Assurance, Health Care / Q000191:economics*; D015996:Survival Rate