Links
[1] https://www.ctsnet.org/user/login?destination=user/487188
[2] https://www.ctsnet.org/print/home/usachdeva
[3] https://www.ctsnet.org/article/simple-conversion-mechanical-bentall-biological-bentall
[4] https://www.ctsnet.org/articles/usachdeva
[5] https://www.ctsnet.org/society/ctsnet
[6] https://www.ctsnet.org/society/sts