sentences:  According to the published code of practice  appointments are normally of three years duration.In accordance with the Code of Practice issued by the Commissioner for Public Appointments, members cannot serve on the Committee for more than 10 years.The JCVI "expressed concern" about giving triple vaccines to children with a personal or family history of convulsions, but considered it appropriate to proceed with a planned introduction of the MMR vaccine in October 1988, including two products containing Urabe strain.