[Involvement of joints of extremities in ankylosing spondylitis; its frequency and nosological value].
D000844:Ankylosis; D005121:Extremities; D006801:Humans; D007596:Joints; D013166:Spondylitis; D013167:Spondylitis, Ankylosing / Q000150:complications*
JOINTS; SPONDYLITIS, ANKYLOSING/complications
L'impegno artro-periferico nella spondilite anchilosante:  sua frequenza, suo valore nosologico.