Joseph P Ortner

A wide gap second derivative NIR spectroscopic method for measuring tissue hemoglobin oxygen saturation.

Chris E Cooper, Roxanne P Seifert, John D Mowlem, 2006, Advances in experimental medicine and biology.

Noninvasive method for measuring local hemoglobin oxygen saturation in tissue using wide gap second derivative near-infrared spectroscopy.

Dean E. Myers, Chris E Cooper, C. Cooper, 2005, Journal of biomedical optics.