CHAPTER 2 MEDICINES FOR HUMAN USE 2.1 Initial evaluation 2.2 Post-authorisation activities 2.3 Pharmacovigilance and maintenance activities 2.4 Scientific advice 2.5 Arbitration and Community referrals 2.6 Special services 2.7 International activities 2.8 Orphan medicinal products 2.9 CPMP and COMP working parties and ad hoc groups 2.10 Mutual recognition facilitation group