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SARS coronavirus-2 may impact people differently with preexisting underlying medical conditions such as heart disease or pregnancy.

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The purpose of this reference set is to document preexisting underlying medical conditions described in COVID-19 case reporting forms.

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Zero or one OR Zero or more

Zero or more

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Editorial Guidelines

Most concepts will come from clinical finding and on a rare instance (e.g. History of xxx) situation with explicit context.

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