6Hughes A J,Daniel SE,Kilford L,et al.Accuracy of clinical diagnosis of idiopathic Parkinson's disease:a clinicopathologic study of 100 cases[J].J Neurol Neurosurg Psychiatry,1992,55(3):181-184.
8Smith L B, Wasshausen D C. Begonia soli-mutata, a new Brazil- ian species whose leaf color varies with light intensity [ J ]. Be- gonian, 1990 (57) : 151 - 152.
9Vaughn KC. Chimeras and Variegation:problems in propaga- tion[ J]. Hort. Science, 1983,18 (6) : 17-19.
10Charles AC, Richard T P. Fluoride induced chlorosis and he- erosis of Dracaena fragrans ' Massangeana' [ J ]. Amer. Soc. Hort. Sci. , 1982,107 ( 1 ) : 136-139.