title: Cricoid ring thing.
authors.forename: E
authors.initials: E
authors.lastname: Whyte
authors.forename: P
authors.initials: P
authors.lastname: Jefferson
authors.forename: D R
authors.initials: DR
authors.lastname: Ball
mesh_terms: D000328:Adult; D000367:Age Factors; D000886:Anthropometry; D002648:Child; D003413:Cricoid Cartilage / Q000033:anatomy & histology*; D006801:Humans; D007442:Intubation, Intratracheal