Trials The twelve LOCATION@1 trials before the ORGANIZATION@1 -LRB- NMT -RRB- took place from December NUMBER@1 , NUMBER@2 to April NUMBER@3 , NUMBER@4 .

Trials The twelve LOCATION@2 trials in front of the ORGANIZATION@2 took place from December NUMBER@1 , NUMBER@2 to April NUMBER@3 , NUMBER@4 .
