About the Authors
- David Heiden
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*To whom correspondence should be addressed. E-mail: dheidenpea@yahoo.com
- Nathan Ford
- David Wilson
- William R Rodriguez
- Todd Margolis
- Bart Janssens
- Martha Bedelu
- Nini Tun
- Eric Goemaere
- Peter Saranchuk
- Kalpana Sabapathy
- Frank Smithuis
- Emmanuel Luyirika
- W. Lawrence Drew
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
DH developed the studies, collected and analyzed data, and prepared the manuscript. DW collected and analyzed data and helped revise the manuscript. NF, WRR, and TM analyzed data and helped write the manuscript. BJ, MB, NT, PS, FS, and EL helped with study design and data collection. EG and KS helped develop the studies and helped with data collection. WLD helped prepare the manuscript.