| http://www.w3.org/ns/prov#value | - Hereinafter, the term ???orthopedic chair??? means a chair that prevents or corrects injuries such as sores, pressure sores or disorders of the skeletal system and associated muscles, e.g. correcting posture, joints, and ligaments that arise at the ischium when the person is supported in a sitting position in a chair at the shoulder blades, tail bone and heels when the person is sitting or reclini
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