Abstract Osteogenesis imperfecta (OI) is a disorder of low bone mass and increased fracture risk due to a range of genetic variants that prominently include mutations in genes encoding type I collagen. While it is well known that OI reflects defects in the activity of bone-forming osteoblasts. it is currently unclear whether OI also reflects defects in the many other cell types compri... https://www.roneverhart.com/Stoneraven-West-Non-Ladder/