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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
A A A+ A- A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ
AC ACA ACB ACC ACD ACE ACF ACG ACH ACI ACK ACL ACM ACN ACO ACP ACQ ACR ACS ACT ACU ACV ACY

Ac element

[Actinium. A trivalent radioactive element and the prototypical member of the actinide family. It has the atomic symbol Ac, atomic number 89, and atomic weight 227.0278. Its principal isotope is 227 and decays primarily by beta-emission. ( MSH )]
UMLS (CSP) C0001246
 
Hazardous or Poisonous Substance
Element, Ion, or Isotope
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