Hayes JM, Garc?a-Rivera E, Flores-Reyna R, Su?rez-Rangel G, Rodr?guez-Mata T, Coto-Portillo R, Baltrons-Orellana R, Mendoza-Rodr?guez E, De Garay BF, Jubis-Estrada J, Hern?ndez-Argueta R, Biggerstaff BJ, Rigau-P?rez JG. Risk factors for infection during a severe dengue outbreak in El Salvador in 2000. Am J Trop Med Hyg. 2003 Dec; 69(6):629-33.