https://www.semanticscholar.org/paper/Type-I-2HDM-under-the-Higgs-and-Electroweak-Chen-Han/a918c82c11872cafeeb47eb3892c358d45a2d53e Date Published Tuesday, March 12, 2019 Ning Chen, Tao Han, Shuailong Li, Shufang Su, Wei Su, Yongcheng Wu 1901