@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_datum_	skos:broader	isac:methodological_issue_ .
isac:_sample_	skos:broader	isac:methodological_issue_ .
isac:_analysis_	skos:broader	isac:methodological_issue_ .
isac:_measurement_	skos:broader	isac:methodological_issue_ .
isac:_methodology_	skos:broader	isac:methodological_issue_ .
isac:_case_	skos:broader	isac:methodological_issue_ .
isac:study_design_	skos:broader	isac:methodological_issue_ .
<http://webisa.webdatacommons.org/concept/small+sample_size_>	skos:broader	isac:methodological_issue_ .
isac:sample_size_	skos:broader	isac:methodological_issue_ .
isac:selection_bias_	skos:broader	isac:methodological_issue_ .
isac:_assessment_	skos:broader	isac:methodological_issue_ .
isac:_definition_	skos:broader	isac:methodological_issue_ .
isac:_sampling_	skos:broader	isac:methodological_issue_ .