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 全世界所有新发现癌症病人总数的46%和癌症死亡病人总数的52%来自中国、印度和俄罗斯? The situation is roughly the same as the United States.