T-cell receptor excision circle levels and safety of paediatric immunization: A population-based self-controlled case series analysis oleh Kumanan Wilson, Daniel Rodriguez Duque, Malia S.Q Murphy, Steven Hawken, Anne Pham-Huy, Jeffrey Kwong, Shelley L. Deeks, Beth K. Potter, Natasha S. Crowcroft, Dennis E. Bulman, Pranesh Chakraborty, Julian Little