PT - JOURNAL ARTICLE AU - Hein Heidbuchel TI - The search for the tipping point on when to anticoagulate patients with atrial fibrillation AID - 10.1136/heartjnl-2016-310325 DP - 2017 Feb 01 TA - Heart PG - 181--183 VI - 103 IP - 3 4099 - http://heart.bmj.com/content/103/3/181.short 4100 - http://heart.bmj.com/content/103/3/181.full SO - Heart2017 Feb 01; 103