attributeName	attributeDefinition	class	unit	dateTimeFormatString	missingValueCode	missingValueCodeExplanation
variable_mapping_id	Identifier of the variable mapping information.	character			NA	Not available
table_name	Name of the table containing this variable.	character			NA	Not available
variable_name	Name of the measured variable.	character			NA	Not available
mapped_system	System defining variable_name.	character			NA	Not available
mapped_id	Identifier of the definition in mapped_system.	character			NA	Not available
mapped_label	Label for variable_name in mapped_system.	character			NA	Not available
