Indicate whether the following manifestations are characteristic of Buerger's disease or Raynaud's Phenomenon?
-involves cutaneous arteries of the fingers and toes
-treated with calcium-channel blockers (esp. Procardia)
-predominant in young females
-episodes involve white, blue, and red color changes of the fingertips
-precipitated by exposure to cold, caffeine, tobacco
-frequently associated with autoimmune disorders