Luciano JV, Barrada JR, Aguado J, Osma J, García-Campayo J. Bifactor analysis and construct validity of the HADS: a cross-sectional and longitudinal study in fibromyalgia patients. Psychological Assessment. 2014 Jun;26(2):395-406.
Yang J, Bogerd HP, Le S, Cullen BR. The human endogenous retrovirus K Rev response element coincides with a predicted RNA folding region. RNA. 2000 Nov;6:1551-64.
Yang J, Cullen BR. Structural and functional analysis of the avian leukemia virus constitutive transport element. RNA. 1999 Dec;5:1645-55.