TY  - JOUR 
T1  - Onchocerciasis in Ecuador: the situation in 1989
JO  - Memórias do Instituto Oswaldo Cruz
A1  - Guderian, Ronald H.
A1  - Shelley, Anthony J.
SN  - 0074-0276
UL  - 10.1590/S0074-02761992000300011
VL  - 87 
Y1  - 1992
PB  - Brasil 
ER  -