1. 
   Watson capsule
   The Watson peroral small intestinal biopsy capsule was a system used through from the 1960s to obtain small intestinal wall biopsies in patients with suspected coeliac disease and other diseases affecting the proximal small bowel. A similar device known as the Crosby-Kugler capsule was also develop...
   Found op http://en.wikipedia.org/wiki/Watson_capsule
   
   

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