I hate to do this, but "can anybody out there" provide a quick ROT type estimate for dose from injected Tc-99m used in bone scans. I believe the chemical form is Technetium phosphate. I'm not a medical HP type, and I'm too lazy to do the work myself. If there is a rem/uCi average for "standard man" that would do just fine. Many thanks in advance. Keith Welch CEBAF welch@cebaf.gov