| O/E | observed/expected [ratio] |
|---|---|
| OIF | observed intrinsic frequency; oil immersion field; Osteogenesis Imperfecta Foundation |
| BLV | Biologic Limit Value; »ý¹°ÇÐÀû Çã¿ëÇѰè |
| CEA | Carcino-Embryonic Antigen [HP 1825-6] ; Oncofetal Antigens ; Glycopro... |
| HVL | Half-Value Layer |