Rare Disorders – Protracted Suffering12/03/2015December 3, 2015Quite often, the rarer the disease, the longer it takes to be diagnosed and correctly treated. Dr. Jürgen Schäfer explains how he tracks down the causes of mysterious symptoms.https://p.dw.com/p/1HDdcAdvertisementRare Disorders – Protracted SufferingTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video