Optional_OptionaldescriptionHuman readable description
OptionalextensionAdditional content defined by implementations
OptionalidUnique id for inter-element referencing
OptionalmodifierExtensions that cannot be ignored even if unrecognized
OptionalnoteUsed for footnotes or explanatory notes
OptionalquantityUsed to express the observation at a defined amount of time after the study start
OptionalrangeUsed to express the observation within a period after the study start
Human readable description