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Andrés Straffon Osorno

Andrés Ernesto Straffon Osorno, Mexican pediatrician (10 January 1925 – Ciudad de Mexico 23 August 2012)

Authored the first monograph about preputium (1982)

Showed that the prepuce is a sphincter-similar plexiform smooth muscle (Straffon-Vargas dartos)

Elaborated neostigmine test for pathognomonic diagnosis of congenital pyloric stenosis (1959)

Developed a new technique for synechotomy

Patented a synechotomy forceps and 4 distinct kinds of tongue depressors