Model changes to capture and consolidate human disease data

A new tag ‘Human_disease_info’ proposed to consolidate disease-related data in WormBase:

?Gene
Human_disease_info  OMIM_ortholog  ?Database  ?Database_field  ?Accession_number   
Potential_model_for	?DO_term	XREF	Gene	#Evidence
Experimental_model_for	?DO_term	XREF	Gene	#Evidence
Human_disease_relevance	?Text	#Evidence //moved from ‘structured description’ tag

Model for Disease Ontology Term:

?DO_term 
Name  ?Text
Status UNIQUE Valid
              Obsolete
Alternate_id  ?Text
Definition    ?Text
Comment        Text
Synonymn      ?Text Scope_modifier UNIQUE Broad
Relationships is_a
              part_of