Payne, J. V. (1972). "Benign red pigmentation of stool resulting from food coloring in a new breakfast cereal (the Franken Berry stool)". Pediatrics. 49 (2): 293–294. doi:10.1542/peds.49.2.293. PMID5059537. S2CID6104019.
Payne, J. V. (1972). "Benign red pigmentation of stool resulting from food coloring in a new breakfast cereal (the Franken Berry stool)". Pediatrics. 49 (2): 293–294. doi:10.1542/peds.49.2.293. PMID5059537. S2CID6104019.
nypost.com
Niemietz, Brian (October 31, 2009). "It's berry scary". New York Post. Retrieved August 5, 2019.
Payne, J. V. (1972). "Benign red pigmentation of stool resulting from food coloring in a new breakfast cereal (the Franken Berry stool)". Pediatrics. 49 (2): 293–294. doi:10.1542/peds.49.2.293. PMID5059537. S2CID6104019.