| ASD | Autism spectrum disorder |
| EUR | European |
| FDR | False discovery rate |
| HRM | High resolution melting |
| IQ | Intelligence Quotient |
| ITA | Italian |
| MAF | Minor allele frequency |
| NLGN | Neuroligin |
| NSMR | Non-syndromic mental retardation |
| PDD-NOS | Pervasive developmental disorder-not otherwise specified |
| SNP | Single nucleotide polymorphism |