http://pubs.acsorg/journals/jnprdf/ Journal of natural products J NAT PROD 影响因子:2.202 专门报道天然产物A Free sample background from www.powerpointbackgrounds.com Slide 2 Journal of Natural Products J NAT PROD 影响因子：2.202 专门报道天然产物 http://pubs.acs.org/journals/jnprdf/