[Basic patterns in the receipt of calls for medical first aid according to time in different types of cities].
D004630:Emergencies; D005392:First Aid; D006801:Humans; D012426:Russia; D012621:Seasons; D013997:Time Factors; D014505:Urban Population
Osnovnye zakonomernosti postupleniia vyzovov skoroĭ meditsinskoĭ pomoshchi po vremeni v gorodakh raznogo tipa.