00446nas a2200193   4500000000100000008004100001100001600042700001400058700001400072700001700086700001200103700001300115700001200128700001200140245007400152300000600226490000600232022001400238       2004                            d1 aE. Fombonne1 aL. Heavey1 aL. Smeeth1 aL. Rodrigues1 aC. Cook1 aP. Smith1 aL. Meng1 aA. Hall00aValidation of the diagnosis of autism in general practitioner records  a50 v4  a1471-2458