Embryo/Fetus 2 : The developing human organism from conception until the time of birth. More specifically; embryo: 2 weeks (implantation) - 8 weeks; fetus : 8 weeks - term
28- Radiation Safety Office, Harvard University Department of Environmental Health & Safety, Radiation: Glossary of Terms, Cambridge, MA, USA 2010. radiation_protection@harvard.edu. (Rad Sfty, Prot and Cont - Amer) {82}
