by Criado, F J, Classen, J N, Wilson, Jr, T H
Published in The American surgeon (01.07.1981)

by Classen, J N, Bonardi, R, O'Mara, C S, Finney, D C, Sterioff, S
Published in Annals of surgery (01.11.1976)

by Classen, J N, Martin, R E, Sabagal, J
Published in Southern medical journal (Birmingham, Ala.) (01.11.1975)

by Classen, J N, Rolley, R T, Carneiro, R, Martire, J R
Published in The American surgeon (01.02.1976)

by Zizic, Thomas M., Classen, John N., Stevens, Mary Betty
Published in The American journal of medicine (01.10.1982)

by Classen, J N, Martin, R E, Thompson, N O
Published in Acta chirurgica belgica (01.05.1977)

by Wilgis, E F, Jezic, D, Stonesifer, Jr, G L, Classen, J N, Sekercan, K
Published in Journal of bone and joint surgery. American volume (01.09.1974)

by STAFFORD, E S, TRIMBLE, I R, CLASSEN, J N
Published in Annals of surgery (01.06.1954)

by Classen, J N, Richardson, J B, Koontz, C
Published in Annals of surgery (01.06.1982)

by CLASSEN, J N
Published in Annals of surgery (01.06.1964)

by CLASSEN, J N
Published in Maryland state medical journal (01.12.1956)

by CLASSEN, J N, HOOPER, J
Published in The American surgeon (01.06.1964)

by Classen, J N, Montague, A C, Wilgis, S
Published in Archives of surgery (Chicago. 1960) (01.01.1970)