203150 -OEChem-02060822402D 0 0 0 0 0 0 0 0 0999 V2000 M END > 203150 > 3 > ChemIDplus > R01000000 > R01000000 > Internalized radionuclides that emit alpha-particles R01000000 Radionuclides Radionuclides (including radon) > R01000000 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=R01000000 $$$$