Memory Impairment and Plasma BDNF Correlates of the BDNF Val66Met Polymorphism in Patients With Bipolar II Disorder - Yun-Hsuan Chang; Tzu-Yun Wang; Sheng-Yu Lee; Shiou-Lan Chen; Chih-Chun Huang; Po See Chen; Yen Kuang Yang; Jau-Shyong Hong; Ru-Band Lu (Frontiers in Genetics, 2018)