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