Yang JH, Kondratyuk TP, Marler LE, Qiu X, Choi Y, Cao H, Yu R, Sturdy M, Pegan S, Liu Y, Wang LQ, Mesecar AD, Van Breemen RB, Pezzuto JM, Fong HH, Chen YG, Zhang HJ. Isolation and evaluation of kaempferol glycosides from the fern Neocheiropteris palmatopedata. Phytochemistry. 2010 Apr; 71(5-6):641-7.