title: Author response.
authors: Cincinnati.
authors: Alberto J
authors: AJ
authors: Espay
authors: El Paso, TX.
authors: Alok
authors: A
authors: Dwivedi
authors: Toronto.
authors: Anthony E
authors: AE
authors: Lang
authors: Cincinnati.
authors: Michael J
authors: MJ
authors: Linke
authors: Birmingham, AL.
authors: Jerzy P
authors: JP
authors: Szaflarski
mesh_terms: D000978:Antiparkinson Agents / Q000008:administration & dosage* / Q000191:economics*; D005260:Female; D006801:Humans; D008297:Male; D010300:Parkinson Disease / Q000188:drug therapy* / Q000191:economics*; D015990:Placebo Effect
chemical_list: D000978:Antiparkinson Agents