Siguenos en:
Institute for Prospective Technological Studies (IPTS)
Saludalia.com/Eresmas
Consejo de Ministros
The Journal of Infectious Diseases 1994; 169:919922.
Water Research 1996; 8:905-913.
Clinical Infectious Diseases 1998;26:138-140.
Semin Resp Infect, 1998;13:147-159.
United States Environmental Protection Agency (EPA)
Hispagua