Complex sentence: Ernst Theodore Krebs, Jr. (May 17,1911--September 8,1996) was an American biochemist who promoted various substances as alternative cures for cancer, including pangamic acid and amygdalin.
Split into simpler sentences: Ernst Theodore Krebs, Jr. (May 17,1911--September 8,1996) was an American biochemist. He is known for promoting various substances as alternative cures for cancer, including pangamic acid and amygdalin.