[Professor Roberto Frias: one-hundredth anniversary of his birth].
D000846:Anniversaries and Special Events; D004501:Education, Medical / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D036801:Parturition
BIOGRAPHIES; EDUCATION, MEDICAL/history
Professor Roberto Frias: no centenário do seu nascimento.