When checking the quality of  the latest bot edits on disease terms I am seeing some strange results from the WDQS.
The numbers of statements with rank Normal and rank Deprecated don't add up, to the number added from the original source. 

When I ran the following query: 

PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX wikibase: <http://wikiba.se/ontology#>

SELECT DISTINCT ?diseases ?doid WHERE {
   ?diseases p:P699 ?doid .
   ?doid wikibase:rank wikibase:NormalRank .
   ?doid wikibase:rank wikibase:DeprecatedRank .
}

I did expect no result, since it returns statements with both rank normal, as rank deprecated. However, I got 2041 tuples [1].

Andra

[1] http://tinyurl.com/pgre6gh