A HUMAN NECESSITIES
A61 MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61B DIAGNOSIS; SURGERY; IDENTIFICATION
A61B5/00 Measuring for diagnostic purposes; Identification of persons
A61B5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence
A61B5/0075 by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy