Changes

The first data on development of retractile foreskin were provided in 1949 by the famous British paediatrician, [[Douglas Gairdner]].<ref name="Gairdner">{{:GairdnerDM1949}}</ref> His data have been incorporated into many textbooks and is still being repeated in the medical literature today. [[Douglas Gairdner|Gairdner]] said that 80 percent of boys should have a retractable foreskin by the age of two years, and 90 percent of boys should have a retractable prepuce by the age of three years.<ref name="Gairdner"/>