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Umar A, Ibrahim AA, Kumar R, Algadi H, Albargi H, Alsairi MA, Alhmami MAM, Zeng W, Ahmed F, Akbar S.Umar A, et al.Environ Res. 2021 Sep;200:111377. doi: 10.1016/j.envres.2021.111377. Epub 2021 May 28.Environ Res. 2021.PMID: 34058181
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Ibrahim AA, Dar GN, Zaidi SA, Umar A, Abaker M, Bouzid H, Baskoutas S.Ibrahim AA, et al. Among authors: umar a.Talanta. 2012 May 15;93:257-63. doi: 10.1016/j.talanta.2012.02.030. Epub 2012 Feb 22.Talanta. 2012.PMID: 22483908
Al-Heniti S, Badran RI, Umar A, Al-Ghamdi A, Kim SH, Al-Marzouki F, Al-Hajry A, Al-Sayari SA, Al-Harbi T.Al-Heniti S, et al. Among authors: umar a.J Nanosci Nanotechnol. 2012 Jan;12(1):68-74. doi: 10.1166/jnn.2012.5117.J Nanosci Nanotechnol. 2012.PMID: 22523947
Lamba R, Umar A, Mehta SK, Kansal SK.Lamba R, et al. Among authors: umar a.Talanta. 2015 Jan;131:490-8. doi: 10.1016/j.talanta.2014.07.096. Epub 2014 Aug 6.Talanta. 2015.PMID: 25281131
Kumar R, Rana D, Umar A, Sharma P, Chauhan S, Chauhan MS.Kumar R, et al. Among authors: umar a.Talanta. 2015 May;137:204-13. doi: 10.1016/j.talanta.2015.01.039. Epub 2015 Feb 7.Talanta. 2015.PMID: 25770626