Efficacy of Long-term Flecainide Therapy in Patients with Paroxysmal Atrial Fibrillation —Analysis Based on Time of Onset— oleh Takashi Komatsu, MD, Yoshihiro Satou, MD, Hideaki Tachibana, MD, Motoyuki Nakamura, MD, Ken Okumura, MD, Shin Nakamura, MD, Osamu Suzuki, MD, Daisuke Horiuchi, MD, Kunihiko Yomogida, MD