Name	Info	Provider	Link
Choking	free resource	MedlinePlus Health Information	https://medlineplus.gov/choking.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29658455/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29658455
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CRP-1
	free resource	Chinese Journal of Contemporary Pediatrics	http://www.zgddek.com/EN/abstract/abstract14487.shtml