1. Raynaud's Phenomena;Hutchison J.;Med. Press,1901
2. Loriga G.(1911) “Il lavro degli scapellini coi martelli pneumatici” quoted byLoriga G.(1934).11
3. Diffuse Sclerodermia: Its Frequency; Its Occurrence in Stonemasons, etc.;Bramwell B.;Edinb. med. J.,1914