Worldwide, 3.69 billion people had an oral disease in 2021, according to a study published recently in the Lancet. The main oral conditions affecting people were untreated cavities, inflammatory ...
Researchers are planning a nationwide study into how animals kept at zoos and aquariums contract bacteria that causes gum disease when wild animals are rarely found with any. Yoshihito Shimazu ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果