Protocol for a nationwide prospective, observational cohort study of foreign-body airway obstruction in Japan: the MOCHI registry.
Tatsuya NoriiYutaka IgarashiKim Sung-HoShimpei NagataTakashi TagamiYudai YoshinoTakuro HamaguchiRiko MaejimaShunichiro NakaoDanielle AlbrightShoji YokoboriHiroyuki YokotaTakeshi ShimazuCameron CrandallPublished in: BMJ open (2020)
UMIN 000039907.