共 5 条
[3]
心音图学[M]. 科学出版社 , 徐成斌 编著, 1982
[4]
Algorithm for detecting the first and the second heart sounds by spectral tracking[J] . A. Iwata,N. Ishii,N. Suzumura,K. Ikegaya.Medical & Biological Engineering & Computing . 1980 (1)
[5]
COMPUTER GRAPHICS[P]. 英国专利:GB8614915D0,1986-07-23