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Authors
Pyana Kitenge, Joseph https://orcid.org/0000-0002-8128-8768
Musa Obadia, Paul
Carsi Kuhangana, Trésor
Kayembe-Kitenge, Tony
Nkulu Banza, Patient
Nsenga Mukanda, Lilian
Nawej Tshimwang, Pascal
Katoto, Patrick D. M. C.
Banza Nkulu Lubaba, Celestin
Mukalay wa Mukalay, Abdon
Nemery, Benoit https://orcid.org/0000-0003-0571-4689
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Article History
Received: 28 January 2021
Accepted: 13 April 2021
First Online: 27 April 2021
Declarations
:
: The authors declare no competing interests.
: The study protocol was approved by the ethical committee of the University of Lubumbashi (UNILU/CEM/130/2019).
: All nonsmoking workers present on the premises were invited to participate after receiving information on the purpose and nature of the study. Signed informed consent was obtained.
: Participants consented in writing for the publication of anonymous data. Written consent was obtained.
