Merge pull request #1 from AlbertLeeUCSF/typo_correction
Update cdm54.html
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@ -1266,7 +1266,7 @@ occurrence or the first high quality occurrence of a Clinical Event
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(Condition, Drug, Procedure, Device, Measurement, Visit) is defined as
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(Condition, Drug, Procedure, Device, Measurement, Visit) is defined as
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the start of the OBSERVATION_PERIOD record, and the end date of the last
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the start of the OBSERVATION_PERIOD record, and the end date of the last
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occurrence of last high quality occurrence of a Clinical Event, or the
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occurrence of last high quality occurrence of a Clinical Event, or the
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end of the database period becomes the end of the OBSERVATOIN_PERIOD for
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end of the database period becomes the end of the OBSERVATION_PERIOD for
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each Person. If a Person only has a single Clinical Event the
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each Person. If a Person only has a single Clinical Event the
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OBSERVATION_PERIOD record can be as short as one day. Depending on these
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OBSERVATION_PERIOD record can be as short as one day. Depending on these
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definitions it is possible that Clinical Events fall outside the time
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definitions it is possible that Clinical Events fall outside the time
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