Health / Medical Topics |
Start Relative to Reference Period
An indication or description that the start of the observation is before, during or after a reference time interval. (NCI Thesaurus)
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A coded value specifying when this event started with respect to the sponsor-defined reference period.
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Indicates the beginning action of a procedure.
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The date and time of the beginning of a dosing interval.
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An autosomal recessive and rarely autosomal dominant inherited disorder caused by mutations in the ABCA4 or ELOVL4 genes respectively. It is characterized…
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The determination of the amount of starch crystals present in a sample.
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A substance found in plants. It contains sugar molecules joined chemically. It is found in high levels in foods such as potatoes,…
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