May early exercise testing after myocardial infarction predict the extent of coronary artery disease?. Scardi S, Pivotti F, Gori P, Klugmann S, Salvi A, Pandullo C, Camerini F. G Ital Cardiol. 1985 Mar;15(3):260-5. PMID: 4018463
The Master's two-step exercise tolerance electrocardiographic test. II. Gonzalez LF. Md State Med J. 1970 Mar;19(3):93-4. PMID: 5441260
Exercise testing: an update. Young SG, Froelicher VF. Mod Concepts Cardiovasc Dis. 1983 May;52(5):25-8. PMID: 6350844
