| 14. | Tyrosine Kinases Btk and Tec Regulate Osteoclast Differentiation by Linking RANK and ITAM Signals Pages 794-806 Masahiro Shinohara, Takako Koga, Kazuo Okamoto, Shinya Sakaguchi, Kimiko Arai, Hisataka Yasuda, Toshiyuki Takai, Tatsuhiko Kodama, Tomohiro Morio, Raif S. Geha, Daisuke Kitamura, Tomohiro Kurosaki, Wilfried Ellmeier and Hiroshi Takayanagi | | | 20. | Targeted Deletion Reveals Essential and Overlapping Functions of the miR-17∼92 Family of miRNA Clusters Pages 875-886 Andrea Ventura, Amanda G. Young, Monte M. Winslow, Laura Lintault, Alex Meissner, Stefan J. Erkeland, Jamie Newman, Roderick T. Bronson, Denise Crowley, James R. Stone, Rudolf Jaenisch, Phillip A. Sharp and Tyler Jacks | | |