Defective RNA replication by poliovirus mutants deficient in 2A protease cleavage activity.

od Yu, S F, Benton, P, Bovee, M, Sessions, J, Lloyd, R E
Wydane 1995

Double blind, placebo controlled trial of metronidazole in Crohn's disease.

od Sutherland, L, Singleton, J, Sessions, J, Hanauer, S, Krawitt, E, Rankin, G, Summers, R, Mekhjian, H, Greenberger, N, Kelly, M
Wydane 1991