Liu X, Behrman J, Hannum E, Wang F, Zhao Q. Same environment, stratified impacts? Air pollution, extreme temperatures, and birth weight in South China. Soc Sci Res. 2022 Jul;105:102691. doi: 10.1016/j.ssresearch.2021.102691
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.
Fleming A, Goatman KA, Sharp PF, Styles CJ, Wikes WN, Olson JA. A large scale validation of automated grading. Eur J Ophthalmol. 2009 May 1;19(3):504.