Xiaoling Wang, Ranak Trivedi, Frank Treiber, and Harold Snieder, Genetic and Environmental Influences on Anger Expression, John Henryism, and Stressful Life Events: The Georgia Cardiovascular Twin Study, Wang, Xiaoling; Trivedi, Ranak; Treiber, Frank; Snieder, Harold (2005). „Genetic and Environmental Influences on Anger Expression, John Henryism, and Stressful Life Events: The Georgia Cardiovascular Twin Study”. Psychosomatic Medicine. 67 (1): 16—23. PMID15673619. doi:10.1097/01.psy.0000146331.10104.d4.
Xiaoling Wang, Ranak Trivedi, Frank Treiber, and Harold Snieder, Genetic and Environmental Influences on Anger Expression, John Henryism, and Stressful Life Events: The Georgia Cardiovascular Twin Study, Wang, Xiaoling; Trivedi, Ranak; Treiber, Frank; Snieder, Harold (2005). „Genetic and Environmental Influences on Anger Expression, John Henryism, and Stressful Life Events: The Georgia Cardiovascular Twin Study”. Psychosomatic Medicine. 67 (1): 16—23. PMID15673619. doi:10.1097/01.psy.0000146331.10104.d4.