Study Type of data Exposure measurement Outcome assessment Adjustment
De Lorenzo (Controls unexposed, disease free), 2020 retrospective cohort Data were collected retrospectively during paediatric consultations. Data were collected retrospectively during paediatric consultations. None
De Lorenzo (Controls unexposed, sick), 2020 retrospective cohort Data were collected retrospectively during paediatric consultations. Data were collected retrospectively during paediatric consultations. None

master protocol