Tom Heller, Dick Heller, Stephen Pattison, Tom Heller
Heller T, Heller D, Pattison S, Heller T.
Vaccination against mumps, measles, and rubella: is there a case for deepening the debate?How safe is MMR vaccine?Validity of the evidenceDealing with uncertaintyGP's response
BMJ 2001; 323 :838
doi:10.1136/bmj.323.7317.838