Evaluating the “holiday season effect” of hospital care on the risk of mortality from pulmonary embolism: a nationwide analysis in Taiwan oleh Duan-Pei Hung, Shu-Man Lin, Peter Pin-Sung Liu, I-Min Su, Jin-Yi Hsu, Ting-Yu Wu, Chu-Chun Lin, Huei-Kai Huang, Ching-Hui Loh