An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Do S, Karl WC, Liang Z, Kalra M, Brady TJ, Pien HH.Do S, et al. Among authors: pien hh.Phys Med Biol. 2011 Nov 21;56(22):7109-25. doi: 10.1088/0031-9155/56/22/008. Epub 2011 Oct 25.Phys Med Biol. 2011.PMID: 22025109
Do S, Salvaggio K, Gupta S, Kalra M, Ali NU, Pien H.Do S, et al. Among authors: pien h.Comput Math Methods Med. 2012;2012:736320. doi: 10.1155/2012/736320. Epub 2012 Oct 3.Comput Math Methods Med. 2012.PMID: 23082091Free PMC article.
Do S, Karl WC, Singh S, Kalra M, Brady T, Shin E, Pien H.Do S, et al. Among authors: pien h.PLoS One. 2014 Nov 12;9(11):e111625. doi: 10.1371/journal.pone.0111625. eCollection 2014.PLoS One. 2014.PMID: 25390888Free PMC article.