Table 1.

Search terms

Fragile X Fragile X Syndrome Fragile-X FXS FRAXA Syndrome AFRAX Martin Bell* Syndrome Marker X Syndrome fraX Syndrome fra(X) Syndrome X-linked mental retardation Macroorchidism Escalante* Syndrome Escalante* FRAXE Syndrome Fragile X mental retardation Fragile X-F mental retardation Mar(X) Syndrome Mental retardation, X-linked FMR1 FMRP

autis* autism* autistic* ASD autism spectrum disorder* PDD-NOS PDDNOS PDD unspecified PDD pervasive developmental disorder* pervasive developmental disorder not otherwise specified Asperger* Asperger* syndrome

Terms within each list were combined with OR operators; the two lists were combined with the AND operator