Judgment of the Court (Seventh Chamber) of 26 March 2020.#Pfizer Consumer Healthcare Ltd v Commissioners for Her Majesty's Revenue and Customs.#Reference for a preliminary ruling — Common Customs Tariff — Combined Nomenclature — Tariff classification — Heading 3005 and heading 3824 — Self-heating patches and belts to relieve pain — Implementing Regulation (EU) 2016/1140