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by Bowie, William Copeland; Armstrong, R. A.
by Armstrong, Douglas R.
by Persily, Cynthia Armstrong, Ph. D. , R. N.
by George, Richard R.; Armstrong, Denise; Wrigglesworth, Lynnette
by Armstrong, A. L.; Billups, C. R.
by Bird, R. Byron; Curtiss, Charles F.; Armstrong, Robert C.; et al.
by Armstrong, R. F.; Salmon, J. B.
by Armstrong, Robert R., M.d.
by George Armstrong Kelly , Preface by Stephen R. Graubard