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en-5 This user can contribute with a professional level of English.
es-1 Este usuario puede contribuir con un nivel básico de español.
fr-0 Cet utilisateur ne comprend pas le français ou seulement avec des difficultés notables.
zh-1 該用戶能以基本中文進行交流。
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Equation.png This user is an advanced mathematician.
ACS This user is a member of the American Chemical Society.
Ambidextorous.png This user is ambidextrous.
Nuvola apps edu science.svg This user is a chemist.
Rod of Asclepius2.svg This user aspires to be a physician.