P. A. Ryan

Modification of MCDB 110 medium to support prolonged growth and consistent high cloning efficiency of diploid human fibroblasts.

J. Mccormick, V. Maher, P. A. Ryan, 1987, Experimental cell research.

Failure of infinite life span human cells from different immortality complementation groups to yield finite life span hybrids

V. Maher, P. A. Ryan, J. Justin McCormick, 1994, Journal of cellular physiology.