DRD2 and Langer mesomelic dysplasia: The 14 source nodes included DRD2, EEF1A2, GRM1, GYPE, SLC33A1, hypomyelination, WH (Werdnig Hoffmann paralysis), granuloma (granuloma of intestine), Langer (Langer mesomelic dysplasia syndrome), infection (infection in the elderly), renal (high renal threshold for glucose), liver injury, dopamine, and antihistamines.