Long COVID and the mental and physical health of children and young people: national matched cohort study protocol (the CLoCk study)

Stephenson T, Shafran R, De Stavola B, Rojas N, Aiano F, Amin-Chowdhury Z, McOwat K, Simmons R, Zavala M, Consortium C, Ladhani SN, CLoCk Consortium members. Long COVID and the mental and physical health of children and young people: national matched cohort study protocol (the CLoCk study). BMJ Open. 2021; 11(8): e052838.