37 (1): 166–172. doi:10.1007/s10508-007-9255-3. PMID 18074220. ↑ Blanchard R, Kolla NJ, Cantor JM, Klassen PE, Dickey R, Kuban ME, Blak T (2007). "IQ, handedness, and pedophilia in adult male patients stratified by referral source.".