Plants and population: is there time? Journal   Proceedings of the National Academy of Sciences of the United States of America. Citation   Proc Natl Acad Sci U S A. 96(11):5903-7 Publication date   1999 May 25 Authors   Fedoroff NV Cohen JE Investigators   Nina Fedoroff MeSH headings   Food Supply Plants, Edible Population Growth Medline ID   99272622