Part 4: Oral/poster AB069. Effect of osteogenesis imperfecta on children and their families Vu Chi Dung, Kate Armstrong, Can Thi Bich Ngoc, Bui Phuong Thao, Nguyen Ngoc Khanh, Nguyen Thu Trang, Nguyen Thi Hoan, Nguyen Phu Dat, Craig Munns