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