For humans, teeth are a very precious organ. In nature, fierce animals like big sharks constantly change their teeth throughout their lives, while humans only have two opportunities to grow teeth in their lifetime, one is deciduous and the other is permanent...

Beijing News (Chen De) The founding conference of China dermatology New Drug Alliance and the first dermatology New Drug Clinical Research Summit Forum were held recently in Beijing. The alliance aims to strengthen the collaborative innovation and scientific and technological innovation of clinical research, new drug research and development, and achievement transformation in dermatology, promote the linkage of "government, industry, university, research and medicine", so as to promote the high-quality development and global cooperation of dermatology innovative drug industry, and benefit Chinese and global dermatology patients...