Random walk model simulates the increased drowsiness of children with obstructive sleep apneaShu Guo, Hila Dvir, Shlomo Havlin, Daqing Li, Rui Kang and Ronny P. BartschEPL, 129 6 (2020) 60002DOI: https://doi.org/10.1209/0295-5075/129/60002