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The peptide market contains both legitimate suppliers committed to quality and opportunistic vendors selling substandard or counterfeit products

doi: 10.1016/j.cell.2025.05.010 112 LiuL.HuhJ

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Most notably, only the combined loss of the tumor suppressors RB1 and TP53 in genetic mouse models enables the lineage switching from AR-dependent luminal tumors to AR-independent neuroendocrine and basal-like cancers [44, 45]
