Castro, Aldemar Araujo, Otávio Augusto Câmara Clark, and Alvaro Nagib Atallah. 1997. “Optimal Search Strategy for Clinical Trials in the Latin American and Caribbean Health Science Literature Database (LILACS)”. São Paulo Medical Journal 115 (3):1423-26. https://periodicosapm.emnuvens.com.br/spmj/article/view/2108.