AspirinPainChronic PainPain ManagementPain ThresholdPain, PostoperativeBack PainLow Back PainPain MeasurementPlatelet Aggregation InhibitorsAnti-Inflammatory Agents, Non-SteroidalNeck PainPain, IntractableAbdominal PainPelvic PainPain PerceptionFacial PainAcute PainPain, ReferredShoulder PainTreatment OutcomeMusculoskeletal PainTiclopidineQuestionnairesThromboxane B2Prospective StudiesCyclooxygenase InhibitorsAnalgesicsDepressionTime FactorsPlatelet AggregationSalicylatesSeverity of Illness IndexFollow-Up StudiesChronic DiseaseRisk FactorsSymptom AssessmentDrug Therapy, CombinationPlatelet Function TestsNeuralgiaNociceptive PainDouble-Blind MethodQuality of LifeAnalgesics, OpioidBlood PlateletsFibrinolytic AgentsDose-Response Relationship, DrugPrevalenceSodium SalicylateRetrospective StudiesArthralgiaMyofascial Pain SyndromesHyperalgesiaHemorrhageComplex Regional Pain SyndromesPsychiatric Status Rating ScalesCross-Sectional StudiesGastrointestinal DiseasesAnticoagulantsCohort StudiesVisceral PainBehavioral SymptomsIbuprofenAnxietyGastrointestinal HemorrhageAsthma, Aspirin-InducedWarfarinAcetaminophenTablets, Enteric-CoatedRecurrenceCyclooxygenase 1FibromyalgiaProstaglandin-Endoperoxide SynthasesAnalgesiaMyocardial InfarctionBleeding TimeAffective SymptomsLongitudinal StudiesPlatelet ActivationLabor PainCyclooxygenase 2 InhibitorsAcute DiseaseDisability EvaluationFatigueSex FactorsThromboxanesStrokeRandomized Controlled Trials as TopicThrombosisComorbidityAnalgesics, Non-NarcoticIncidenceAge FactorsRisk AssessmentThromboxane A2Drug Administration ScheduleDepressive DisorderHeadacheDipyridamoleStress, Psychological