POPLINE [NOTE: POPLINE will Retire Sept. 1, 2019 - alternate resources listed]
"(POPulation information onLINE) contains citations with abstracts to scientific articles, reports, books, and unpublished reports in the field of population, family planning, and related health issues....POPLINE has nearly 370,000 records" , the majority published from 1970 to the present. Some articles in full text.