Free speech and snake oil.
Edward C
EC
Halperin
D000329:Advertising / Q000941:ethics / Q000379:methods / Q000592:standards*; D002961:Civil Rights; D003254:Consumer Advocacy; D005610:Freedom; D006801:Humans; D018787:Radiation Oncology / Q000592:standards; D020266:Radiotherapy, Conformal / Q000592:standards*; D014481:United States