title: Leaky umbrella. Invitees not willing to pay for inclusion in AMA.
authors.forename: Michael
authors.initials: M
authors.lastname: Romano
mesh_terms: 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