@misc{indiciae0f22301e0f6e,
  title = {[Heart sound recognition algorithm based on PNN for evaluating cardiac contractility change trend].},
  author = {Xingming Guo and Yan Yan and Xiaoshuai Yao and Shouzhong Xiao},
  year = {2006},
  url = {https://pubmed.ncbi.nlm.nih.gov/17121325/},
  note = {Source identifier: 17121325}
}