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Hy Turkin (September 1, 1938). "Grimes Vetoes Ruth's Comeback". New York Daily News. Archived from the original on August 12, 2021. Retrieved August 12, 2021.
Maloney, William James; Weinberg, Mea A. (July 2008). "A comprehensive analysis of Babe Ruth's head and neck cancer". Journal of the American Dental Association. 139 (7): 926–932. doi:10.14219/jada.archive.2008.0279. ISSN0002-8177. PMID18594078.
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Special to the New York Times (January 1, 1921). "Says Ruth Lost $35,000"(PDF). The New York Times. Vol. LXX, no. 22, 988. p. 20. Archived(PDF) from the original on October 31, 2022. Retrieved December 1, 2022.
United Press (March 8, 1930). "Ruth Accepts $80,000 Contract". The Pittsburgh Press. Archived from the original on February 24, 2021. Retrieved November 23, 2016.
Hy Turkin (September 1, 1938). "Grimes Vetoes Ruth's Comeback". New York Daily News. Archived from the original on August 12, 2021. Retrieved August 12, 2021.
Pirone, Dorothy; Martens, Chris (1988). My Dad, The Babe: Growing up with an American Hero. Boston: Quinlan Press. p. 250. ISBN978-1-55770-031-5. OCLC17652057.
Maloney, William James; Weinberg, Mea A. (July 2008). "A comprehensive analysis of Babe Ruth's head and neck cancer". Journal of the American Dental Association. 139 (7): 926–932. doi:10.14219/jada.archive.2008.0279. ISSN0002-8177. PMID18594078.