Muscle RigidityTremorNeuroleptic Malignant SyndromeMasseter MuscleEssential TremorSuccinylcholineMalignant HyperthermiaAlfentanilSomatoform DisordersFentanylHalothaneMusclesPsychophysiologic DisordersMuscle, SkeletalMuscle ProteinsPremenstrual SyndromeMuscle, SmoothDepressionPsychosomatic MedicineMuscle Fibers, SkeletalMuscle ContractionMuscle, Smooth, VascularQuestionnairesEnvironmental IllnessNeurologic ExaminationQuality of LifeObsessive Behavior