A reliable tool for detecting 7‐dehydrocholesterol and cholesterol in human plasma and its use in diagnosis of Smith–Lemli–Opitz syndrome. - Luo, Yitao; Liu, Zhengyuan; Zeng, Yujie; Zhang, Yuxiao; Luan, Yujing; Ma, Li; Chen, Li; Zou, Lin; Yang, Jingmin; Huang, Zhibin; Rao, Yulan; Zhang, Chengqiang (Journal of Separation Science, 2022)