title: Work With Residual DDT Spray in Puerto Rico: A Report of the First Year's Work.
authors.forename: P A
authors.initials: PA
authors.lastname: Stephens
authors.forename: H D
authors.initials: HD
authors.lastname: Pratt
mesh_terms: D000818:Animals; D009033:Culicidae; D003634:DDT; D005018:Ethyl Chloride; D006801:Humans; D009032:Mosquito Control; D011647:Puerto Rico