Assertion: muscle fiber | /r/HasProperty | detected in a background of negative cells
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Source sentences:
text: Prior to embarking on experiments to examine the prevalence of hematopoietic stem cell derived engraftment into skeletal muscle, we wanted to ensure that GFP could be readily detected in mature muscle fibers from GFP mice, and that muscle fibers produced upon regeneration with myogenic stem cells from the labeled mice could be detected in a background of negative cells.