title: Improved diffraction patterns from isolated heart muscle with infrared light.
mesh_terms: D000818:Animals; D006321:Heart / Q000502:physiology* / Q000528:radiation effects; D007259:Infrared Rays; D007834:Lasers; D009206:Myocardium / Q000648:ultrastructure*; D011817:Rabbits; D051381:Rats; D013053:Spectrophotometry; D013055:Spectrophotometry, Infrared