SP received honoraria from Pfizer, Boryoung, Hanmi, Daewoong, Donga, Celltrion, Servier, Daiichi Sankyo and Daewon. SP also received research grant from Daiichi Sankyo. HMC served as a speaker or member of speakers bureau AstraZeneca; Pfizer Inc.; Bayer AG; Boehringer Ingelheim Pharmaceuticals, Inc.; Daiichi Sankyo, Novartis Pharmaceuticals, Inc.; SERVIER; Co., Pharmaceuticals Corporation; Sanofi;