UMLS. CSP-HL7-ICD9CM-NCI-NDFRT-RXNORM
%
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
R R R- R0 R1 R2 R3 R4 RA RB RC RD RE RF RG RH RI RK RM RN RO RP RQ RR RS RT RU RV RW RX RY
RA RA- RA4 RAB RAC RAD RAE RAF RAG RAI RAL RAM RAN RAP RAR RAS RAT RAU RAV RAY RAZ

radioisotope

[isotopes that decay and emit radiation; either naturally occurring elements or are produced by the action of neutrons, protons, deuterons, or alpha particles; index with a specific element when appropriate, e.g., C14 index with CARBON and RADIONUCLIDE. ( CSP )]
UMLS (NCI) C0034595
 
Element, Ion, or Isotope
Relation/PAR: Element
Relation/CHD: actinide
radon
Tc element
H3 radionuclide


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