Lesch-Nyhan Syndrome (LNS)
Here's your citation in American Psychological Association (APA) format:
Lesch-Nyhan Syndrome (LNS). (n.d.). In Alleydog.com's online glossary. Retrieved from: https://www.alleydog.com/glossary/definition-cit.php?term=Lesch-Nyhan+Syndrome+%28LNS%29