One hundred five genes contained two or more SNPs with p<10−3. We evaluated linkage disequilibrium (LD) among markers within each of these genes to assess whether these were redundant or suggestive of multiple, independent signals. Forty-eight genes met these criteria, including four genes (FAF1, OPA3, OXTR, and SPATA13) implicated by our most significant markers, as well as GRIN2A and HTR1B. A full list is provided in Table 4.