The largest country in North America, comprising 10 provinces and three territories. Its capital is Ottawa.
D006260
Head Protective Devices
Personal devices for protection of heads from impact, penetration from falling and flying objects, and from limited electric shock and burn.
Helmets,Device, Head Protective,Devices, Head Protective,Head Protective Device,Helmet,Protective Device, Head,Protective Devices, Head
D006801
Humans
Members of the species Homo sapiens.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001642
Bicycling
The use of a bicycle for transportation or recreation. It does not include the use of a bicycle in studying the body's response to physical exertion (BICYCLE ERGOMETRY TEST see EXERCISE TEST).
D012449
Safety
Freedom from exposure to danger and protection from the occurrence or risk of injury or loss. It suggests optimal precautions in the workplace, on the street, in the home, etc., and includes personal safety as well as the safety of property.