How many articles were published in the Cell journal in 2015 ?
SELECT DISTINCT COUNT ( t3.paperid ) FROM paper AS t3 JOIN journal AS t2 ON t3.journalid  =  t2.journalid JOIN paperkeyphrase AS t1 ON t3.paperid  =  t1.paperid WHERE t2.journalname  =  "Cell" AND t3.year  =  2015;
SELECT DISTINCT COUNT ( t3.paperid ) FROM paper AS t3 JOIN journal AS t2 ON t3.journalid  =  t2.journalid JOIN paperkeyphrase AS t1 ON t3.paperid  =  t1.paperid WHERE t2.journalname  =  "Cell" AND t3.year  =  2015;
[{'COUNT ( t3.paperid )': 0}]