organism: Mus musculus
attributes.tag: collection_date
attributes.value: 2013-04-13
attributes.tag: geo_loc_name
attributes.value: USA: Washington State University
attributes.tag: age
attributes.value: Pd 6
attributes.tag: biomaterial_provider
attributes.value: Culture
attributes.tag: sex
attributes.value: male
attributes.tag: tissue
attributes.value: Spermatogonial Stem Cells
attributes.tag: breed
attributes.value: C57BL/6J
attributes.tag: BioSampleModel
attributes.value: Model organism or animal