QC Physics 14 human 9 Article 7 radioactive iodine 7 Radioactivity 6 Animals 5 Humans 5 Isotopes 4 TA Engineering (General). Civil engineering (General) 4 animal 4 chemistry 4 controlled study 4 Nuclear and particle physics. Atomic energy. Radioactivity 3 Numerical methods 3 Q Science (General) 3 Radiation 3 TK Electrical engineering. Electronics Nuclear engineering 3 TP Chemical technology 3 adult 3 clinical article 3 female 3 male 3 procedures 3 radioactivity 3 thyroidectomy 3 225 Ac-rHDL 2 Alpha Particles 2 Bentonite 2 Biophysics 2 Bremsstrahlung imaging 2