by Stea, B, Backlund, Jr, P S, Berkey, P B, Cho, A K, Halpern, B C, Halpern, R M, Smith, R A
Published in Cancer research (Chicago, Ill.) (01.08.1978)

by Berkey, P B, Rolston, K V
Published in Archives of ophthalmology (1960) (01.02.1988)