2004/373/EC: Commission Decision of 13 April 2004 amending Annexes I and II to Decision 2002/308/EC establishing lists of approved zones and approved farms with regard to one or more of the fish diseases viral haemorrhagic septicaemia (VHS) and infectious haematopoietic necrosis (IHN) (Text with EEA relevance) (notified under document number C(2004) 1309)