Liu X, Miao H, Behrman JR, Hannum E, Liang Z, Zhao Q. The Asian Games, air pollution and birth outcomes in South China: an instrumental variable approach. Econ Hum Biol. 2022 Jan;44:101078. doi: 10.1016/j.ehb.2021.101078
Campo R, Brullet E, Montserrat A, Calvet X, Rivero E, Brotons C. Topical pharyngeal anesthesia improves tolerance of upper gastrointestinal endoscopy: a randomized double-blind study. Endoscopy. 1995 Nov;27(9):659-64.