Case IH Puma 230 CVX Tractor with a Struatmann Tera-Vitess… | Flickr
Puma and p21 represent cooperating checkpoints limiting self-renewal and chromosomal instability of somatic stem cells in response to telomere dysfunction | Nature Cell Biology
Case IH Puma 230 CVX Tractor with a Struatmann Tera-Vitess… | Flickr