Complex sentence: In recent years, children with obsessive compulsive disorder (OCD) thought to be caused by an autoimmune response to group A beta-hemolytic streptococcal infection (PANDAS) have been identified, and promises to bring increased understanding of the disorder's pathogenesis.
Split into simpler sentences: In recent years, children with obsessive compulsive disorder (OCD) thought to be caused by an autoimmune response to group A beta-hemolytic streptococcal infection (PANDAS) have been identified. This promises to bring increased understanding of the disorder's pathogenesis.