docm field formatting

[colleenXu]

when looking at docm data https://myvariant.info/v1/query?q=_exists_:%22docm.pubmed_id%22&field=docm, the pubmed_id value is sometimes a list represented as a string. it appears to be ", "-delimited (both a comma AND a space).

It would be easier to use if it was represented as a list of strings. ex: [ "12460918", "23833300", "12068308", "12460919", "21483012", "19010912", "22649091", "19238210" ]

One example

{
  "_id": "chr7:g.140481393T>C",
  "_score": 1,
  "docm": {
    "aa_change": "p.Y472C",
    "all_domains": "pfam_Ser-Thr/Tyr_kinase_cat_dom,pfam_Prot_kinase_dom,pfam_Raf-like_ras-bd,pfam_Prot_Kinase_C-like_PE/DAG-bd,superfamily_Kinase-like_dom,smart_Raf-like_ras-bd,smart_Prot_Kinase_C-like_PE/DAG-bd,smart_Ser/Thr_dual-sp_kinase_dom,smart_Tyr_kinase_cat_dom,pfscan_Raf-like_ras-bd,pfscan_Prot_Kinase_C-like_PE/DAG-bd,pfscan_Prot_kinase_dom,prints_Ser-Thr/Tyr_kinase_cat_dom,prints_DAG/PE-bd",
    "alt": "C",
    "c_position": "c.1415",
    "chrom": 7,
    "default_gene_name": "BRAF",
    "deletion_substructures": "-",
    "disease": "LC",
    "doid": "DOID:1324",
    "domain": "pfam_Ser-Thr/Tyr_kinase_cat_dom,pfam_Prot_kinase_dom,superfamily_Kinase-like_dom,smart_Ser/Thr_dual-sp_kinase_dom,smart_Tyr_kinase_cat_dom,pfscan_Prot_kinase_dom",
    "ensembl_gene_id": "ENSG00000157764",
    "genename": "BRAF",
    "genename_source": "HGNC",
    "hg19": {
      "end": 140481393,
      "start": 140481393
    },
    "primary": 1,
    "pubmed_id": "12460918, 23833300, 12068308, 12460919, 21483012, 19010912, 22649091, 19238210",
    "ref": "T",
    "source": "MyCancerGenome",
    "strand": -1,
    "transcript_error": "no_errors",
    "transcript_name": "ENST00000288602",
    "transcript_source": "ensembl",
    "transcript_species": "human",
    "transcript_status": "known",
    "transcript_version": "74_37",
    "trv_type": "missense",
    "type": "SNP",
    "ucsc_cons": 1,
    "url": "http://www.mycancergenome.org/content/disease/lung-cancer/braf/209"
  }
}

EDIT: there are other fields that are also a little tricky to parse:

• docm.source: sometimes it's "-" and it's unclear what this means. other times it's null
• docm.url: sometimes this field's value is null (rather than not having the field when there's no value)