AU - Cheng S, Wang TJ TI - OUtcomes in patients with prolonged pr interval or first-degree atrioventricular block—reply PT - JOUR DP - 2009 TA - JAMA pages = {1967-1968}, VI - 302 IP - 18 AID - 10.1001/jama.2009.1605 [doi] 4100 - http://dx.doi.org/10.1001/jama.2009.1605 SO - JAMA November 11, 2009 302(18):1967