Hannum E, Liu X, Wang F. Estimating the effects of educational system contraction: the case of China's rural school merger initiative. Econ Dev Cult Change. 2021 Oct 1;70(1):485-528. doi: 10.1086/711654
Dickinson KL, Patil SR, Pattanayak SK, Poulos C, Yang JH. Nature's call: impacts of sanitation choices in Orissa, India. Econ Dev Cult Change. 2015 Oct;64(1):1-29.
Fleming AD, Xia X, McDicken WN, Sutherland GR, Fenn L. Myocardial velocity gradients detected by Doppler imaging. Br J Radiol. 1994 Jul 1;67(799):679-88. doi: 10.1259/0007-1285-67-799-679