BarberingBarber SurgeonsBeauty CultureComplex MixturesAlum CompoundsHazardous SubstancesPakistanDisease Transmission, InfectiousGeneral SurgeryEquipment ContaminationEthiopiaHealth Knowledge, Attitudes, PracticeHealth EducationHepatitisOrthopedicsMotion PerceptionSpecialties, SurgicalThoracic SurgeryRisk FactorsCross-Sectional StudiesClinical CompetenceLearning CurvePostoperative ComplicationsTreatment OutcomeSurgical Procedures, OperativeSurgery, PlasticLaparoscopySurgery, OralOperating Rooms