Reproductive Techniques, AssistedInfertilityFertilityInfertility, FemaleMultiple Birth OffspringMedical TourismFertilization in VitroPregnancyClomiphenePregnancy OutcomeInfertility, MaleOvulation InductionDenmarkPregnancy RateSperm CountPregnancy, MultipleMaternal AgeCryopreservationSperm Injections, IntracytoplasmicFertility PreservationEmbryo TransferPregnancy ComplicationsProspective StudiesCohort StudiesFertility AgentsQuestionnairesBirth RateSpermatozoaSperm MotilityReproductive BehaviorReproductionInsemination, ArtificialSemenTestisSpermatogenesisSemen PreservationOvaryPlant InfertilityFamily Planning ServicesSemen AnalysisFamily Planning PolicyContraception, ImmunologicLitter SizeFertilizationFertility Agents, FemaleContraceptive AgentsContraceptionFertility Agents, MaleReproductive MedicineEpididymisPrimary Ovarian InsufficiencyPopulation ControlOvulationSperm BanksGenitalia, MaleOvarian FollicleSocieties, ScientificEstrous CycleParity