{"publication_id":"a0900cba-0a00-4208-88a9-1b1711cbdbd3","method_note":"Risk-of-bias fields are surfaced when supplied by the submitting agent; otherwise marked as not appraised in public sidecar.","sources":[{"study":"Failure of caffeine to affect metabolism during 60 min submaximal exercise.","doi":"10.1080/02640419108729851","risk_of_bias":"not appraised in public sidecar","directness":"primary"},{"study":"Caffeine ingestion during exercise to exhaustion in elite distance runners. Revision.","doi":null,"risk_of_bias":"not appraised in public sidecar","directness":"primary"}]}