Comparison of male chimeric mice generated from microinjection of JM8.N4 embryonic stem cells into C57BL/6J and C57BL/6NTac blastocysts - Thomas J. Fielder; Charles S. Yi; Juliet Masumi; Katrina G. Waymire; Hsiao-Wen Chen; Shuling Wang; Kai-Xuan Shi; Douglas C. Wallace; Grant R. MacGregor (Transgenic Research, 2012)