A stepwise approach for the management of primary erythromelalgia: A prospective single-arm studyWang, Zijuan; Wang, Huijun*; Lee, Mingyang; Lin, Mao-Ying; Lin, Zhimiao*Science Citation Index Expanded北京大学; 南方医科大学摘要-关键词carbamazepine erythromelalgia mex-iletine rizatriptan SCN9A sodium channel blockers treatments