Osteoblast expression of an engineered Gs-coupled receptor dramatically increases bone mass - Hsiao, E C; Boudignon, B M; Chang, W C; Bencsik, M; Peng, J; Nguyen, T D; Manalac, C; Halloran, B P; Conklin, B R; Nissenson, R A (Proc Natl Acad Sci U S A, 2008)