Alvaro Freire de Villalba Alvim, Brazilian radiologist (Vassouras, Rio de Janeiro State 16 April 1863 - Rio de Janeiro 21 May 1928)

 

 

ACHIEVEMENTS

 

Obtained the first radiography of xiphopagus in the world (1897) permitting Chapot-Prevost perform his operation. 

 

Invented leaded paper