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by Kirby, Roger S., M.D.
by Kirby, Roger S.; Gilling, Peter J.
by Kirby, Roger S.; McLean, Dee
by Dasgupta, Prokar; Kirby, Roger S.
by Professor Roger S Kirby
by Kirby, Roger S.
by Carson, Culley C., III, M.D.; Kirby, Roger S.; Goldstein, Irwin
by Kirby; Roger S.
by Brawer, Michael K.; Kirby, Roger S.