José Manuel Rivero Carvallo (1 April 1905, Tehuacán – 15 February 1993) was a Mexican cardiologist remembered for describing Carvallo's sign.

Biography José Carvallo was born in Tehuacán, in the Mexican state of Puebla, in 1905. He studied initially at the Meritorious Autonomous University of Puebla, then continued his studies in Paris with a scholarship granted by the French government, gaining his doctorate in 1932. He returned to Mexico in 1934 to practice cardiology. In 1944, he was a founding member of the National Institute of Cardiology of Mexico under Ignacio Chávez Sánchez.Article at historiadelamedicina.org (Spanish) He described the sign for which he is remembered in 1946.Rivero-Carvallo JM. Signo para el diagnóstico de las insuficiencias tricuspideas. Archivos del Instituto de cardiologia de Mexico, 1946, 16: 531.

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