About the Authors
- Blaise Noa Noatina
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* E-mail: noatina@yahoo.fr
Affiliation Programme National de Lutte Contre la Cécité, Ministère de la Santé, Yaoundé, Cameroun
- Giles Kagmeni
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Affiliation Faculté de Médecine et des Sciences Biomédicales, Université de Yaoundé I, Yaoundé, Cameroun
- Marcellin Nimpa Mengouo
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Affiliation World Health Organization, Yaoundé, Cameroun
- Henri Claude Moungui
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Affiliation Délégation Régionale de la Santé Publique de l'Extrême-Nord, Maroua, Cameroun
- Ann Tarini
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Affiliation Helen Keller International, Yaoundé, Cameroun
- Yaobi Zhang
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Affiliation Helen Keller International, Regional Office for Africa, Dakar, Senegal
- Assumpta Lucienne Françoise Bella
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Affiliations Programme National de Lutte Contre la Cécité, Ministère de la Santé, Yaoundé, Cameroun, Faculté de Médecine et des Sciences Biomédicales, Université de Yaoundé I, Yaoundé, Cameroun
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: BNN GK MNM AT ALFB. Performed the experiments: BNN MNM. Analyzed the data: HCM YZ. Wrote the paper: BNN YZ. Coordinated the program and the study: BNN AT.