Display_xref_id, not all genes have.  With a left join we sort this out.
Display_xref_id, not all genes have.  With a left join we sort this out.

Ensembl/ensembl,willmclaren/ensembl,mjg17/ensembl,at7/ensembl,danstaines/ensembl,mjg17/ensembl,at7/ensembl,muffato/ensembl,willmclaren/ensembl,Ensembl/ensembl,Ensembl/ensembl,danstaines/ensembl,james-monkeyshines/ensembl,mjg17/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,muffato/ensembl,mjg17/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,at7/ensembl,muffato/ensembl,danstaines/ensembl,at7/ensembl,muffato/ensembl