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Contributors CEC conceived and wrote the manuscript and is the sole author. Helen Groth provided critical comment on the submission.
Funding CEC was supported by an Australian Postgraduate Award (UNSW).
Competing interests CC and the adolescent in Figure 1 are related to the Editor in Chief.
Patient consent Consent was provided by the Guardian (author CC) and the adolescent in figure 1.
Provenance and peer review Commissioned; internally peer reviewed.