Changes in the control program of visceral leishmaniasis in Brazil.
Costa
C H
CH
Hospital de Doenças Infecto-Contagiosas, teresina, PI, Brasil. crlhncst@aol.com
Vieira
J B
JB
D001938:Brazil; D006801:Humans; D007898:Leishmaniasis, Visceral / Q000517:prevention & control*; D016730:Program Development