Leaky umbrella. Invitees not willing to pay for inclusion in AMA.
Romano
Michael
M
D000574:American Medical Association / Q000191:economics / Q000458:organization & administration*; D001291:Attitude of Health Personnel; D005249:Fees and Charges; D008511:Medicine; D012955:Societies, Medical; D013038:Specialization; D014481:United States