title: Does vaccination with the varicella vaccine within four weeks after the measles, mumps and rubella vaccine reduce protection?
authors.affiliation: Vaccine Evaluation Centre, BC Children's Hospital, Vancouver, British Columbia.
authors.forename: Keswadee
authors.initials: K
authors.lastname: Lapphra
authors.forename: David
authors.initials: D
authors.lastname: Scheifele