About the Authors
Department of Anatomy and Cell Biology, College of Medicine, University of Saskatchewan, Saskatoon, Canada
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SDLP TAAH. Performed the experiments: SDLP MEM BW TAAH. Analyzed the data: SDLP MEM TAAH. Contributed reagents/materials/analysis tools: SDLP MEM TAAH. Wrote the paper: SDLP TAAH.