sci
hub

to open science

donate to Sci-Hub

from 1 USD and more

Thomas, K. R., & Capecchi, M. R. (1987). Site-directed mutagenesis by gene targeting in mouse embryo-derived stem cells. Cell, 51(3), 503–512. doi:10.1016/0092-8674(87)90646-5 
10.1016/0092-8674(87)90646-5