Journal of Biophotonics Journal of Biophotonics Spectral attenuation of brain and retina tissues in the near-infrared range measured using a fiber-based supercontinuum device Saldaña-Díaz José Eduardo Jarabo Sebastián Universidad de Zaragoza Salgado-Remacha Francisco Javier Universidad de Zaragoza Perdices Lorena Pinilla Isabel Universidad de Zaragoza Sanchez-Cano Ana Universidad de Zaragoza 2017 research-article