TY - BOOK ID - 145913118 TI - Oversight of helicopter medical services : hearing before the Subcommittee on Aviation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, April 22, 2009. PY - 2009 PB - Washington : U.S. G.P.O., DB - UniCat KW - Helicopter ambulances KW - Helicopter ambulances KW - Helicopter pilots KW - Emergency medical services KW - Safety measures. KW - Safety regulations KW - Training of UR - https://www.unicat.be/uniCat?func=search&query=sysid:145913118 AB - ER -