Who states in his Practica of fistula-in-ano that he practised in Newark in Nottinghamshire, England, from 1349, moving to London in 1370. He claims to be the only surgeon who can perform the operation for fistula-in-ano and lists his patients. His writings are notably attentive to the practicalities of treatment and make considerable use of case histories and visual illustrations.
From The Oxford Dictionary of the Middle Ages in Oxford Reference.
Subjects: Medieval and Renaissance History (500 to 1500).