Milkovich NM, et al. - Experts sought to test the premise that the Small Parts Test Fixture (SPTF) (31.75 mm) is smaller than pertinent portions of the aerodigestive tract. They completed a 3-year retrospective review (2011–2014) of head/neck CT data for infants and children (N = 106) aged 6 months to 6 years. Compared to the SPTF values created from cadavers, computed tomography measurements seem larger. Enlargement of the SPTF to improve safety for choking hazards in children was supported by these CT data. Findings suggested that with increased age, a linear trend of increasing dimensions was seen. They noted the best association of the length measured from maxillary incisors to posterior edge of hard palate with known data of potential foreign bodies causing injury or death. In all of the age groups, no statistical anatomical differences by gender were seen.