'Monthly fees to groups of physicians for miners' health care evolved into this program in 1939'
Blue Shield
THE SHIELD: Monthly fees to groups of physicians for miners' health care evolved into this program in 1939
Monthly fees to groups of physicians for miners' health care evolved into this program in 1939
Monthly fees to groups of physicians for miners' health care evolved into this program in 1939
THE SHIELD
Blue Shield
THE SHIELD