Recommendation to marketing authorisation holders, highlighting recent measures in the veterinary field to promote replacement, reduction, and refinement (3Rs) measures described in the European Pharmacopoeia - Applicable to human vaccines from 01/01/2018(向营销授权持有人提出的建议，重点介绍了兽医领域的最新措施，以促进《欧洲药典》中描述的替代、减少和改进（3Rs）措施——适用于2018年1月1日起的人类疫苗)