If your interest is technical or hardware-related, "P16" and "RAR" might refer to specific drivers or firmware for electronic devices. How Dietary Factors Affect DNA Methylation - PMC
: Files named "P16_RAR.rar" or similar often contain supplementary data tables from studies found on PubMed or ScienceDirect. Download P16 rar
Tumor-suppressive activity of retinoic acid receptor-β in cancer If your interest is technical or hardware-related, "P16"