musculoskeletal system disease
   |__connective tissue disease
       |__collagen disease  40 rec.
           |__disseminated eosinophilic collagen disease
           |__Ehlers-Danlos syndrome 22 rec.
           |   |__autosomal recessive type IV Ehlers-Danlos syndrome
           |   |__brittle cornea syndrome 1
           |   |__brittle cornea syndrome 2
           |   |__Ehlers-Danlos syndrome arthrochalasia type 1
           |   |__Ehlers-Danlos syndrome arthrochalasia type 2
           |   |__Ehlers-Danlos syndrome cardiac valvular type
           |   |__Ehlers-Danlos syndrome classic type 1 1 rec.
           |   |__Ehlers-Danlos syndrome classic type 2 1 rec.
           |   |__Ehlers-Danlos syndrome classic-like 1 6 rec.
           |   |__Ehlers-Danlos syndrome classic-like 2 1 rec.
           |   |__Ehlers-Danlos syndrome dermatosparaxis type 1 rec.
           |   |__Ehlers-Danlos syndrome hypermobility type
           |   |__Ehlers-Danlos syndrome kyphoscoliotic type 1 1 rec.
           |   |__Ehlers-Danlos syndrome kyphoscoliotic type 2 1 rec.
           |   |__Ehlers-Danlos syndrome musculocontractural type 1 2 rec.
           |   |__Ehlers-Danlos syndrome musculocontractural type 2
           |   |__Ehlers-Danlos syndrome periodontal type 1 2 rec.
           |   |__Ehlers-Danlos syndrome periodontal type 2 1 rec.
           |   |__Ehlers-Danlos syndrome spondylodysplastic type 1 2 rec.
           |   |__Ehlers-Danlos syndrome spondylodysplastic type 2 1 rec.
           |   |__Ehlers-Danlos syndrome spondylodysplastic type 3 2 rec.
           |   |__vascular type Ehlers-Danlos syndrome
           |__mixed connective tissue disease
           |__polymyalgia rheumatica