title: Health professionals' attitudes to MMR  vaccine.  "Green book" should be updated every six months.
authors.forename: J
authors.initials: J
authors.lastname: Howell
authors.forename: H
authors.initials: H
authors.lastname: Duggal
authors.forename: K
authors.initials: K
authors.lastname: Howell
mesh_terms: D002983:Clinical Competence; D006801:Humans; D007114:Immunization / Q000592:standards*; D007255:Information Services; D022542:Measles-Mumps-Rubella Vaccine; D006113:United Kingdom
chemical_list: D022542:Measles-Mumps-Rubella Vaccine