Keystone pushes its gastroenterologists into the pool.
Bernet
P M
PM
Health Care Group, Plymouth Meeting.
D017046:Cost Savings; D005762:Gastroenterology / Q000191:economics*; D006279:Health Maintenance Organizations / Q000191:economics*; D006801:Humans; D015271:Insurance Pools / Q000191:economics*; D010414:Pennsylvania