Filtering by: Subject Animals, Laboratory -- surgery Remove constraint Subject: Animals, Laboratory -- surgery Subject Beard, Joseph W. (Joseph Willis), 1901-1983 Remove constraint Subject: Beard, Joseph W. (Joseph Willis), 1901-1983 Subject Dogs -- surgery Remove constraint Subject: Dogs -- surgery Subject Duke University -- Faculty Remove constraint Subject: Duke University -- Faculty Subject Duke University. School of Medicine Remove constraint Subject: Duke University. School of Medicine Subject Laboratories Remove constraint Subject: Laboratories