Complex sentence: Air Evac Services, Inc. was established in 1969, in Phoenix, Arizona when doctors at the Samaritan Hospital saw a need for prenatal and neonatal transportation from remote locations around Arizona.
Split into simpler sentences: Air Evac Services, Inc. was established in 1969, in Phoenix, Arizona. Doctors at the Samaritan Hospital saw a need for prenatal and neonatal transportation from remote locations around Arizona.