Stephenson, T., Pinto Pereira, S. M., Shafran, R., de Stavola, B. L., Rojas, N., McOwat, K., Simmons, R., Zavala, M., O'Mahoney, L., Chalder, T., Crawley, E., Ford, T. J., Harnden, A., Heyman, I., Swann, O., Whittaker, E., Ladhani, S. N., , , Stephenson, T., Shafran, R., Buszewicz, M., Chalder, T., Crawley, E., Dalrymple, E., de Stavola, B. L., Ford, T., Garg, S., Semple, M., Hargreaves, D., Harnden, A., Heyman, I., Ladhani, S., Levin, M., Poustie, V., Segal, T., Sharma, K., Swann, O., & Whittaker, E. (2022). physical and mental health 3 months after SARS-CoV-2 infection (long COVID) among adolescents in England (CLoCk): a national matched cohort study. Lancet, 6, 230–239. http://access.bl.uk/ark:/81055/vdc_100152646551.0x000005