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Fox NA, Bell MA.Fox NA, et al.Ann N Y Acad Sci. 1990;608:677-98; discussion 698-704. doi: 10.1111/j.1749-6632.1990.tb48914.x.Ann N Y Acad Sci. 1990.PMID: 2075966Review.
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Bell MA, Fox NA.Bell MA, et al. Among authors: fox na.Dev Psychobiol. 1996 Nov;29(7):551-61. doi: 10.1002/(SICI)1098-2302(199611)29:7<551::AID-DEV1>3.0.CO;2-T.Dev Psychobiol. 1996.PMID: 8911771
Young SK, Fox NA, Zahn-Waxler C.Young SK, et al. Among authors: fox na.Dev Psychol. 1999 Sep;35(5):1189-97. doi: 10.1037//0012-1649.35.5.1189.Dev Psychol. 1999.PMID: 10493645
Henderson HA, Fox NA, Rubin KH.Henderson HA, et al. Among authors: fox na.J Am Acad Child Adolesc Psychiatry. 2001 Jan;40(1):68-74. doi: 10.1097/00004583-200101000-00018.J Am Acad Child Adolesc Psychiatry. 2001.PMID: 11195566
Pérez-Edgar K, Fox NA.Pérez-Edgar K, et al. Among authors: fox na.Brain Cogn. 2003 Jun;52(1):33-51. doi: 10.1016/s0278-2626(03)00007-1.Brain Cogn. 2003.PMID: 12812803