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A
.gov website belongs to an official
government organization in the United States.
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A lock (
) or https:// means you've safely
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information only on official, secure websites.
ERBB2 indicates human epidermal growth factor receptor 2; HR, hormone receptor; ICD, International Classification of Diseases (the data set used International Classification of Diseases, Ninth Revision and International Statistical Classification of Diseases and Related Health Problems, Tenth Revision).
