ইউটিউব চ্যানেল লাইক দিন Columbia University Department of Surgery


1,540,000 2.64%

28,300 2.1%

534,000 1.5%



11,500 2.95%

36,200 1.28%



10,900,000 2.82%

5,520,000 2.02%



88,200 3.24%


1,900,000 2.07%


195,000 2.71%

317,000 2.98%


3,650,000 2.58%

225,000 1.85%

20,400,000 2.43%

898,000 1.25%