title: Extremity war injuries: state of the art and future directions. Introduction.
authors.forename: Andrew N
authors.initials: AN
authors.lastname: Pollak
authors.forename: Jason H
authors.initials: JH
authors.lastname: Calhoun
mesh_terms: D005121:Extremities / Q000293:injuries*; D006772:Hospitals, Military / Q000458:organization & administration*; D006801:Humans; D015994:Incidence; D008889:Military Personnel; D009985:Orthopedics / Q000379:methods* / Q000639:trends; D014481:United States / Q000453:epidemiology; D014857:Warfare; D014947:Wounds and Injuries / Q000453:epidemiology*