Castro, Aldemar Araujo, Otávio Augusto Câmara Clark, and Álvaro Nagib Atallah. 1999. “Optimal Search Strategy for Clinical Trials in the Latin American and Caribbean Health Science Literature Database (LILACS database): Update”. São Paulo Medical Journal 117 (3):138-39. https://periodicosapm.emnuvens.com.br/spmj/article/view/2533.