本研究通过建立MMAE耐药的BC细胞系（MR-BCs），发现耐药细胞中DPP4表达显著升高。siRNA沉默DPP4或使用DPP4抑制剂sitagliptin均可抑制 ...

Expert review of the Canon RF 85mm F1.4L VCM mirrorless camera lens with full-size sample images.

The thumbnails below link to full-sized samples taken with the Canon RF 20mm f/1.4L VCM lens mounted on a Canon EOS R5 Mark II camera.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Phil Ryan and Ben Keough The Ricoh GR IV is our new pick for street ...

Your photos deserve to exist as more than mere bits and bytes. Here's how to pick the right photo printer—whether for humble snapshots or big, bold art prints—and our top lab-tested picks. I’m the ...