Conditional expression of a Gi-coupled receptor in osteoblasts results in trabecular osteopenia - Peng, J; Bencsik, M; Louie, A; Lu, W; Millard, S; Nguyen, P; Burghardt, A; Majumdar, S; Wronski, T J; Halloran, B; Conklin, B R; Nissenson, R A (Endocrinology, 2008)