Emergency medical services in the U.S.S.R.
D000552:Ambulances; D001317:Austria; D003142:Communication; D004632:Emergency Medical Services / Q000266:history / Q000600:supply & distribution; D049672:History, 19th Century; D049673:History, 20th Century; D008499:Medical Records; D012425:Russia (Pre-1917); D013689:Telephone; D013997:Time Factors; D014586:USSR; D000078329:Workforce