SLC1A2 and Behcet disease: Two other SLC1A2 N-terminal non-synonymous variants in the main isoform were also detected in this study; case-only variant rs199599866:G>A (p.(R31Q)) was detected in one BD case and one SZ case; and ss825678893:C>T (p.(A7V)) was detected in one BD case and one control subject.