Figure 1B. [doi:10.1172/JCI19846] Jay PY; Harris BS; Maguire CT; Buerger A; Wakimoto H; Tanaka M; Kupershmidt S; Roden DM; Schultheiss TM; O'Brien TX; Gourdie RG; Berul CI; Izumo S, "Nkx2-5 mutation causes anatomic hypoplasia of the cardiac conduction system." J Clin Invest 2004; 113: 1130-7. [PMID:15085192]