Friedman, Meyer; Thoresen, Carl E.; Gill, James J.; Ulmer, Diane; Powell, Lynda H.; Price, Virginia A.; Brown, Byron; Thompson, Leonti; Rabin, David D.; Breall, William S.; Bourg, Edward; Levy, Richard; Dixon, Theodore (1986). "Alteration of type a behavior and its effect on cardiac recurrences in post myocardial infarction patients: Summary results of the recurrent coronary prevention project". American Heart Journal. 112 (4): 653–665. doi:10.1016/0002-8703(86)90458-8. PMID3766365.
Friedman, Meyer; Thoresen, Carl E.; Gill, James J.; Ulmer, Diane; Powell, Lynda H.; Price, Virginia A.; Brown, Byron; Thompson, Leonti; Rabin, David D.; Breall, William S.; Bourg, Edward; Levy, Richard; Dixon, Theodore (1986). "Alteration of type a behavior and its effect on cardiac recurrences in post myocardial infarction patients: Summary results of the recurrent coronary prevention project". American Heart Journal. 112 (4): 653–665. doi:10.1016/0002-8703(86)90458-8. PMID3766365.