Tonsils at Telethon: developing a standardised collection of tonsil photographs for group A streptococcal (GAS) research by Marianne J. Mullane, Hannah M. Thomas, Jonathan R. Carapetis, Jonathan R. Carapetis, Catalina Lizama, Wesley Billingham, Matthew N. Cooper, Christine Everest, Claudia R. Sampson, Claudia R. Sampson, Nelly Newall, Sarah Pearce, Francis Lannigan, Eamonn McNulty, Rebecca Cresp, Ariel O. Mace, Ariel O. Mace, Tina Barrow, Tina Barrow, Asha C. Bowen, Asha C. Bowen, Asha C. Bowen

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