Table 1 Search string for Medline. Search date: 17 October 2022

“Catastrophic Illness“[Mesh] OR “Neoplasms“[Mesh] OR “Terminal Care“[Mesh] OR “Chronic Disease”[Mesh] OR “critical illness”[Mesh] OR “palliative care”[Mesh] OR “Catastrophic Ill*“[tiab] OR “Neoplasm*“[tiab] OR “Terminal“[tiab] OR “life limiting condition*”[tiab] OR “life-limiting disease*”[tiab] OR “life threatening ill*”[tiab] OR “life limiting ill*”[tiab] OR “life threatening condition*”[tiab] OR “life limiting condition*”[tiab] OR “serious ill*”[tiab] OR “chronic disease*”[tiab] OR “chronic ill*”[tiab] OR “critical ill*”[tiab] OR “palliative care”[tiab]

And

pediatrics[MeSH] OR child[MeSH] OR Infan*[tiab] OR minor*[tiab] OR kid[tiab] OR kids[tiab] OR child*[tiab] OR adolescen*[tiab] OR juvenil*[tiab] OR youth*[tiab] OR teen*[tiab] OR underage*[tiab] OR pediatric*[tiab] OR paediatric*[tiab] OR school*[tiab] OR teenager*[tiab] OR youngster*[tiab] OR toddler*[tiab]

And

“Communication“[Mesh] OR “social cognition”[MeSH] OR “social behavior”[MeSH] OR “exploratory behavior*”[MeSH] OR “Personality Development“[MeSH] OR “psychology”[MeSH] OR “adaptation, psychological”[MeSH] OR “cognition*”[tiab] OR “express*”[tiab] OR “communicat*“[tiab] OR “social cognition*[tiab]OR “social behavior*”[tiab] OR “exploratory behavior*”[tiab] OR “Personality Development“[tiab] OR “psychology*”[tiab]

And

“concept formation”[MeSH] OR “Theor*”[tiab] OR construct*[tiab]

OR concept*[tiab]