Case history: cold + worn gears = VWF.
D001334:Automobile Driving; D003080:Cold Temperature; D005385:Fingers / Q000098:blood supply*; D006801:Humans; D007511:Ischemia / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000175:diagnosis*; D014732:Vibration / Q000009:adverse effects*