title: Ficheras and free-lancers: prostitution in a Mexican border city.
mesh_terms: D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008800:Mexico; D008889:Military Personnel; D009790:Occupations; D011635:Public Health Administration; D011477:Sex Work; D012926:Social Control, Formal; D012959:Socioeconomic Factors; D014481:United States