^SAMPLE=[required]
!Sample_title = [required]
!Sample_supplementary_file = [required; use the filename, or 'none']
!Sample_table = [required; use filename.CHP] 
!Sample_source_name = [required]
!Sample_organism = [required]
!Sample_characteristics = [required; 'Tag: Value' format]
!Sample_biomaterial_provider = [optional]
!Sample_treatment_protocol = [optional]
!Sample_growth_protocol = [optional]
!Sample_molecule = [required; allowed values are: total RNA, genomic DNA, polyA RNA, cytoplasmic RNA, nuclear RNA, protein, or other]
!Sample_extract_protocol = [required]
!Sample_label = [required]
!Sample_label_protocol = [required]
!Sample_hyb_protocol = [required]
!Sample_scan_protocol = [required]
!Sample_description = [required]
!Sample_data_processing = [required]