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Nwogu, Okey G. (author), Beck, Robert F. (author) journal article 2017
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Beck, Robert F. (author) journal article 1999
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Beck, Robert F. (author) journal article 1998
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Beck, Robert F. (author) journal article 1994
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Beck, Robert F. (author), Loken, Arne E. (author) journal article 1989
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Cohen, Stuart B. (author), Beck, R.F. (author) journal article 1983
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Beck, Robert F. (author), Newman, J.N. (author), Tuck, E.O. (author) journal article 1975