1. Biological characteristics of a serially cultivated kidney cell derived from the African Green Monkey, Cereopithecus aethiops;Hopps;Fed. Proc.,1962
2. Cultivation of strain of trachoma virus in FL line of human amnion cells;Bernkopf;Bull. Res. Counc. Isr. (Exper. Med.),1960
3. Human infection experiments with three cell-cultured trachoma agents;Bernkopf;Arch. Ophth.,1964
4. Continuous cultivation of epithelial cell strain (FL) from human amniotic membrane;Fogh;Proc. Soc. Exper. Biol. & Med.,1957