Mandatory assignment of Medicare.
Weiss
W I
WI
D000368:Aged; D006801:Humans; D008007:Licensure, Medical / Q000331:legislation & jurisprudence; D008404:Massachusetts; D006278:Medicare / Q000331:legislation & jurisprudence*; D009515:New Jersey; D010820:Physicians / Q000331:legislation & jurisprudence; D012955:Societies, Medical