When the shoemakers retired, the hospital referred Dr. Hsu to the FRTRI. Edward Ho made a special shoe last for Dr. Hsu and had him try out three specially designed insoles-one flat, one arched, and one without an arch.
後來製鞋師傅都離職了，榮總就介紹他到鞋技中心來。侯育文為許倬雲重新製作鞋楦，並準備了平的、有足弓的、無足弓的三種鞋墊，讓許倬雲試穿。