CaliforniaAnimals, ZooMexicoMexican AmericansPhilippinesReagent Kits, DiagnosticAmphetamine-Related DisordersDNA ProbesBlood Group AntigensMolecular Probe TechniquesOlfaction DisordersAcculturationDiagnostic Techniques, OphthalmologicalReceptors, Purinergic P2Y12Point-of-Care SystemsHawaiiEmigration and ImmigrationHispanic AmericansMethamphetamineOptic Nerve DiseasesPrevalenceUnited StatesSensitivity and SpecificityRisk-TakingEvaluation Studies as TopicTiclopidineLasersRisk FactorsNerve FibersPlatelet Aggregation InhibitorsHomosexuality, MaleQuestionnairesOptic DiskCross-Sectional StudiesPredictive Value of TestsLuminescent MeasurementsReproducibility of ResultsHIV InfectionsLogistic ModelsBacteriological TechniquesProspective StudiesAge FactorsSex FactorsInterviews as TopicGenotypeEuropean Continental Ancestry GroupRetrospective StudiesTime FactorsPolymerase Chain ReactionTreatment OutcomeCase-Control StudiesGenetic Predisposition to DiseaseSocioeconomic FactorsPolymorphism, Single NucleotideRisk AssessmentInfant, NewbornDNA, BacterialFollow-Up Studies