Optimal search strategy for clinical trials in the Latin American and Caribbean Health Science Literature database (LILACS database): update.

Castro, A. A., Clark, O. A., & Atallah, A. N. (1999). Optimal search strategy for clinical trials in the Latin American and Caribbean Health Science Literature database (LILACS database): update. São Paulo Medical Journal = Revista Paulista de Medicina. https://doi.org/10.1590/S1516-31801999000300011