The most common clinical symptoms were nervousness in 27 patients (accounted for 52.9%); dyspnea in 20 patients (accounting for 39.2%).
Triệu chứng lâm sàng hay gặp nhất là hồi hộp 27 BN (chiếm 52,9%); khó thở 20 BN (chiếm 39,2%).