If you add up the population of the three countries - China, India, and Russia - that's roughly 40 percent or more of the world's population. So what does this "Harvard" professor tell us when he said that 全世界所有新發現癌症病人總數的46%和癌症死亡病人總數的52%來自中國、印度和俄羅斯? The situation is roughly the same as the United States.