LEGO Series 6 Collectible Minifigs from 2012 reviewed! - YouTube
BrickLink - Set col06-11 : LEGO Surgeon, Series 6 (Complete Set with Stand and Accessories) [Collectible Minifigures:Series 6 Minifigures] - BrickLink Reference Catalog
Flix-Brix.de - LEGO® Ersatzteile, Einzelsteine, Minifiguren und Sets (FlixBrix)
Amazon.com: LEGO Minifigures Series 22 66700 Building Kit; Collectible Toys for Creative Fun for Ages 5+ (Pack of 6) : Toys & Games