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.
Jung E, Fiore M, Gronchi A, Grignol V, Pollock RE, Chong SS, Chopra S, Hamilton AS, Tseng WW.Jung E, et al. Among authors: chopra s.Anticancer Res. 2018 Jun;38(6):3535-3542. doi: 10.21873/anticanres.12625.Anticancer Res. 2018.PMID: 29848707Free PMC article.
Choi A, Carpenter PM, Chopra S, Lara KM, Tseng WW, Patel DB, Hu J.Choi A, et al. Among authors: chopra s.Rare Tumors. 2020 Dec 11;12:2036361320977021. doi: 10.1177/2036361320977021. eCollection 2020.Rare Tumors. 2020.PMID: 33354306Free PMC article.
Duvalyan A, Tran K, Lee C, Chopra S, Hu J.Duvalyan A, et al. Among authors: chopra s.Rare Tumors. 2020 Nov 29;12:2036361320972865. doi: 10.1177/2036361320972865. eCollection 2020.Rare Tumors. 2020.PMID: 34394884Free PMC article.
Naser-Tavakolian A, Gulati M, Duddalwar V, Chopra S, Aron M, Djaladat H.Naser-Tavakolian A, et al. Among authors: chopra s.Ultrasound Q. 2018 Dec;34(4):292-296. doi: 10.1097/RUQ.0000000000000372.Ultrasound Q. 2018.PMID: 30020269Free PMC article.