Basics of Phonocardiogram Interpretation (Value and Limitations of Electrocardiogram and Phonocardiogram) October 1966 in “ 臨牀と研究 ” 邦夫 山川 We don't know much about this study yet. We're maintaining the world's largest resposity of hair loss research. You can help out the community by sending a PDF of this study here . Not sure how to get a study's PDF? You can email the authors of the study. View this study on ci.nii.ac.jp →