8Ouellet MC, Morin CM, Lavoie A. Volunteer work and psycho- logical health following traumatic brain injury. J Head Trauma Rehabil, 2009, 24(4): 262-271.
9Borgonovi F. Doing well by doing good: the relationship between formal volunteering and self-reported health and happiness. Soc Sei Med, 2008, 66( 11 ): 2321-2334.
10Thoits PA, Hewitt L. Volunteer work and well-being. J Health Soc Behav, 2001, 42(2): 115-131.