There was an error running the query [insert into queries_english (query,last) values ('3,3'-diaminobenzidine',curdate()) on duplicate key update repetitions=repetitions+1, last=curdate() - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '',curdate()) on duplicate key update repetitions=repetitions+1, last=curdate()' at line 1]3,3'-Diaminobenzidine. Medical search. Definitions