1.
- North American Spine Society 5th annual meeting Monterey, California August 8-11, 1990 / edit. Arthur White. 1991. Vol. 16, No. 6, no. 6S, Suppl. - Hagerstown : Lippincott, 1991 - s. 178-310(Spine; no. 6S, Suppl.) [1, currently available 0, at library only 1]
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