JMS Pearce Hull, England   Fig 1. Archibald Edward Garrod. Crop of image in Obituary Notices of Fellows of the Royal Society, 1932–1954. Wellcome Collection. CC BY 4.0. It is given to very few to invent a new class of diseases and to even fewer one that has survived subsequent scrutiny. Archibald Garrod, KCMG DM…