title: Improved technique for production of particulate contrast medium.
mesh_terms: D000792:Angiography; D000818:Animals; D003287:Contrast Media / Q000138:chemical synthesis*; D004285:Dogs; D004367:Dry Ice; D005780:Gelatin; D006801:Humans; D008722:Methods; D009584:Nitrogen
chemical_list: D003287:Contrast Media; D004367:Dry Ice; D005780:Gelatin; D009584:Nitrogen