##  [9] &quot;organism_ch1&quot;            &quot;characteristics_ch1&quot;    
## [11] &quot;characteristics_ch1.1&quot;   &quot;characteristics_ch1.2&quot;  
## [13] &quot;molecule_ch1&quot;            &quot;extract_protocol_ch1&quot;   
## [15] &quot;label_ch1&quot;               &quot;label_protocol_ch1&quot;     
## [17] &quot;taxid_ch1&quot;               &quot;hyb_protocol&quot;           
## [19] &quot;scan_protocol&quot;           &quot;description&quot;            
## [21] &quot;data_processing&qu