Environmental Protection Agency - EPA Pub Central

PubMed Central (PMC) is a full-text, online archive of journal literature operated by the National Library of Medicine. The EPA is using PMC to permanently preserve...PubMed Central（PMC）是由美国国立医学图书馆运营的全文在线期刊文献存档库。美国环境保护署（EPA）正依托PMC开展永久性留存工作……