Dr.Huerta says many Latin and South American communities do not have mammography machines, and there is a general lack of knowledge about the disease.
VOA: standard.2010.02.02
Senegar-Mitchell joined the Biotechnology Institute's Teacher-Leader Program, an annual workshop that provides teachers with the skills, strategies and knowledge to raise awareness of biotechnology in their home communities.
VOA: standard.2009.11.25
And,communities have a much greater knowledge about how to reduce risks.
VOA: standard.2009.12.26
应用推荐