source_field,interpretation
TYPES_OF_PLANTS,"Reported plant-type category; exact historical recall interval not independently verified. Five labels preserved, unvalidated values missing."
HOST_SUBJECT_ID,Numeric subject suffix; optional numeric study prefix removed for conservative deduplication.
BODY_SITE,Select UBERON:feces.
AGE,Numeric >=18 with AGE_UNIT years.
COUNTRY,Recorded GAZ country stripped of prefix; unknown missing.
STATE,Recorded region/state code; missing tokens excluded.
SEX,female/male/other; otherwise missing.
BMI,Positive finite numeric; no further plausibility exclusions.
ANTIBIOTIC_SELECT,Five named time-since-antibiotic-use categories; otherwise missing.
