Using the quick search there are shown up to three reports about PNAS:
Spore-forming bacteria, present almost everywhere in our environment, can also cause serious infectious diseases, such as tetanus, anthrax, and botulism.Now researchers from Lund University and the U....
Biowissenschaften Chemie |Historically, many people, including marine scientists, have considered the abyssal plains, more than 2,000 meters below the sea surface, to be relatively isolated and stable ecosystems. However, acco...
Ökologie Umwelt- Naturschutz |Using the fulltext-search for the word PNAS you can set up serveral searching-options > choose search options