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Physical Therapy|July 1, 1978
Review of cervical orthosesD L Hart, R M Johnson, E F Simmons, et al.
The Journal of Bone and Joint Surgery. American Volume|April 1, 1977
Cervical orthoses. A study comparing their effectiveness in restricting cervical motion in normal subjectsR M Johnson, D L Hart, E F Simmons, et al.
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