attributes.tag: isolation_source
attributes.value: Extraction_kit_control
attributes.tag: collection_date
attributes.value: missing
attributes.tag: geo_loc_name
attributes.value: missing
attributes.tag: lat_lon
attributes.value: missing
attributes.tag: sample_type
attributes.value: control
attributes.tag: sample_code
attributes.value: ctl_kit
attributes.tag: sampling_site
attributes.value: Extraction_kit_control
attributes.tag: BioSampleModel
attributes.value: Metagenome or environmental