by Blackburn, George L., Williams, Lester F., Bistrian, Bruce R., Stone, Michael S., Phillips, Ervin, Hirsch, Erwin, Clowes, George H.A., Gregg, James
Published in The American journal of surgery (1976)

by Gallitano, A L, Kondi, E S, Phillips, E, Ferris, E
Published in Radiology (01.01.1976)