- Opitz G/BBB Family Connection: A group of families dedicated to sharing their experiences with others.www.apollos.net/arena/opitz/definition.html
- Multiple Congenital Anomaly/Mental Retardation (MCA/MR) Syndromes View the Full Record Syndrome Opitz syndrome (OS) Synonyms Opitz-Frias syndrome autosomal dominant Opitz syndrome (ADOS) BBB syndrome BBBG syndrome BBB/G syndrome BBG syndrome G syndrome GBBB syndrome G/BBB syndrome hypospadias-dysphagia syndrome hypertelorism-hypospadias syndrome oculo-genito-laryngeal syndrome ...www.nlm.nih.gov/mesh/jablonski/syndromes/syndrome498.html