Complex sentence: BRBNS used to be thought of as having no genetic inheritance however, in 1995 doctors discovered that information to be false, it has been suggested that it may represent a manifestation of familial venous malformation, and may be associated with TEK tyrosine kinase.
Split into simpler sentences: BRBNS used to be thought of as having no genetic inheritance; however, in 1995 doctors discovered evidence to the contrary. It has been suggested that it may represent a manifestation of familial venous malformation, and may be associated with TEK tyrosine kinase.