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Additional Information

Competing Interests

There are no conflicts of interest to declare.

Author Contributions

Grace Gachanja conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Gary J Burkholder analyzed the data, reviewed drafts of the paper.

Aimee Ferraro analyzed the data, reviewed drafts of the paper.

Human Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Ethics approval was received from the Kenyatta National Hospital Research Standards and Ethics Committee (Approval # P373/10/2010) located in Nairobi Kenya, and the Walden University Institutional Review Board (Approval # 11-10-10-03904).

Funding

No funding was received for this study.


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