Dysautonomia, FamilialMuscle RigidityPrimary DysautonomiasAutonomic Nervous System DiseasesNeuroleptic Malignant SyndromeMasseter MuscleSuccinylcholineMalignant HyperthermiaAlfentanilFentanylPhysical Conditioning, HumanKinetinHypotension, OrthostaticHalothaneMusclesPure Autonomic FailureTilt-Table TestSweat GlandsAutonomic Nervous SystemSweatingMuscle ProteinsValsalva ManeuverMuscle, SmoothMuscle, SkeletalMuscle Fibers, SkeletalMuscle, Smooth, Vascular