Changes made by Commission Implementing Regulation (EU) 2018/721 of 16 May 2018 amending Regulation (EU) No 37/2010 to classify the substance porcine prolactin as regards its maximum residue limit (Text with EEA relevance): Commission Regulation (EU) No 37/2010 of 22 December 2009 on pharmacologically active substances and their classification regarding maximum residue limits in foodstuffs of animal origin (Text with EEA relevance)