Osteosclerosis and ectodermal dysplasia
    
        
        
            
        
        Osteosclerosis and ectodermal dysplasia, also known as Cote-Katsantoni syndrome, is one of a group of syndromes deriving from abnormalities of the ectodermal structures, which include the hair, teeth, nails, sweat glands, cranial-facial structure,... 
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