Internal metal(loid)s are potentially involved in the association between ambient fine particulate matter and blood pressure: A repeated-measurement study in north China

Changxin Lan, Yingying Liu, Qi Li, Bin Wang, Tao Xue, Junxi Chen, Bahabaike Jiangtulu, Shufang Ge, Xuepeng Wang, Miaomiao Gao, Yanxin Yu, Ying Xu, Xiuge Zhao, Zhiwen Li