2937            |    Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones.
2937.11.00     -- Somatotropin, its derivatives and structural analogues
2937.12.00     -- Insulin and its salts
2937.19.00     -- Other
2937.21.00     -- Cortisone, hydrocortisone, prednisone (dehydrocortisone) and prednisolone (dehydrohydrocortisone)
2937.22.00     -- Halogenated derivatives of corticosteroidal hormones
2937.23.00     -- Oestrogens and progestogens
2937.29.00     -- Other
2937.50.00   - Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues
2937.90.00     -- Other