Table 6.

Search strings used for the literature search performed by EFSA

Substance groups	Search string
Nitroimidazoles except metronidazole	(1) (substance) AND (2) (half‐life) OR (persisten*) OR (toxicokinetic*) OR (stability) OR (depletion) OR (storage) AND (3) (matrix) OR (sample) OR (analytical) OR (urine) OR (hair) OR (tissue) OR (plasma) OR (serum) OR (kidney) OR (liver) OR (muscle)
Metronidazole	(1) AND (2) AND (3) AND (4) (pig) OR (piglet*) OR (swine) OR (farmed game) OR (boar) OR (deer) OR (rabbit*) OR (ostrich) OR (reindeer)
Stilbenes, gonadal (sex) steroids, resorcylic acid lactones	(1) AND (2) AND (3) AND (5) (bovine) OR (calf) OR (cow) OR (sheep) OR (goat) OR (cattle) OR (heifer) OR (steer)
Thyrostats	(1) AND (2) AND (3) AND (4) (thyroid) is added to (2)
β‐agonists	(1) AND (2) AND (3) AND (4) (eye) is added to (2)