RT Journal Article SR Electronic T1 Sex and War: How Biology Explains Warfare and Terrorism and Offers a Path to a Safer World JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP 185 OP 185 DO 10.1783/147118909788707832 VO 35 IS 3 A1 Lester Venter YR 2009 UL http://jfprhc.bmj.com/content/35/3/185.abstract AB