query: #Wikidata scientific articles that contain "zika" in the title
  SELECT ?item ?title ?_PubMed_ID WHERE {
    ?item wdt:P1476 ?title;
          wdt:P31 wd:Q13442814.
    FILTER(CONTAINS(LCASE(?title), "zika"))
    MINUS  { { ?item wdt:P921 wd:Q202864 . } UNION { ?item wdt:P921 wd:Q8071861 . } }
    MINUS { ?item wdt:P31 wd:Q309481 } #removes obituaries, e.g. Q22330879
    OPTIONAL { ?item wdt:P698 ?_PubMed_ID. }
  }
  LIMIT 1000