title: Letter to the editor.
authors.affiliation: Hospital Mutual de Seguridad, Avenida Bernardo O'Higgins 4848, 9190015 Estacion Central, Santiago, Chile.
authors.forename: Cesar R
authors.initials: CR
authors.lastname: Carcamo
mesh_terms: D016207:Cytokines / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D010147:Pain Measurement / Q000379:methods* / Q000639:trends*; D012019:Reflex Sympathetic Dystrophy / Q000097:blood* / Q000175:diagnosis*
chemical_list: D016207:Cytokines