1. A simplified method for the estimation of total cholesterol in serum;Abell;J. Biol. Chem.,1952
2. Niacin (nicotinic acid) and serum cholesterol;Altschul;JAMA,1958
3. Einfluss von Cytochrom C und Hämatoporphyrin auf Serumcholesterin;Altschul;Z. Kreislaufforsch.,1959
4. Studies on the morphological effects of heme and other metalloporphyrins on the kidney and other organs;Figge;Anat. Record,1961
5. Use of red-fluorescent porphyrins to delineate normal and abnormal anatomical structures and neoplastic tissues in human subjects;Figge;Anat. Record,1955