如果,1美国的大气质量明显高于中国,2而吸烟人口又明显低于中国,则为何肺癌同是首发,或前位高发癌?
所有跟帖:
• for one, indoor air matters more -jaydad- ♂ (0 bytes) () 10/18/2013 postreply 13:49:46
• for two, carcinogenic foods are much stronger cancer-causing ove -jaydad- ♂ (158 bytes) () 10/18/2013 postreply 14:00:07
• over trace amount carcinogen in tobacco smoke -jaydad- ♂ (0 bytes) () 10/18/2013 postreply 14:02:06
• Thank you for the information, -大江川- ♂ (279 bytes) () 10/18/2013 postreply 14:28:40