^SAMPLE=[required]
!Sample_title = [required]
!Sample_supplementary_file = [required; use the filename, or 'none'] 
!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]
!Sample_platform_id = [required; provide accession of existing GEO Platform for array used, e.g. "GPL96"]
#ID_REF = [required; this column should correspond to the ID column of the reference platform]
#VALUE = [required; typically supplied as normalized signal intensities]
#HEADER_3 = [optional]
#HEADER_4 = [optional]
#HEADER_N = [optional; any number of user-defined columns can be included, and it is recommended that data tables be as comprehensive as possible excepting annotations that are provided on the platform entry]
!Sample_table_begin
ID_REF	VALUE	HEADER_3	HEADER_4	HEADER_N
...insert data table here; columns may appear in any order after the ID_REF column...
!Sample_table_end