Association between physical education classes and physical activity among 187,386 adolescents aged 13¿17 years from 50 low- and middle-income countries Xuzhi Zhan; Cain C.T. Clark; Ran Bao; Micheal Duncan; Jin-Tao Hong; Si-Tong Chen;

Are there differences in the physical activity level and functional capacity among children and adolescents with and without asthma? Lívea Gianfrancesco; Ana Paula Gaban Malheiro; Natasha Yumi Matsunaga; Marina Simões Oliveira; Milena Baptistella Grotta; André Moreno Morcillo; José Dirceu Ribeiro; Adyléia Aparecida Dalbo Contrera Toro;

Dietary protein intake and asthma in US children and adolescents: a cross-sectional analysis of NHANES data Lingyu Li; Peipei Tian; Yanmei Teng; Rui Wang; Mingxiao Zhang; Qiuyu Ma;