Closed-system devices: when seatbelts are not enough.
Seth
S
Eisenberg
D017278:Air Bags / Q000592:standards; D001334:Automobile Driving / Q000592:standards*; D001336:Automobiles; D020378:Confined Spaces; D018504:Ecological Systems, Closed; D006801:Humans; D012449:Safety; D012622:Seat Belts / Q000592:standards