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Trainees have also participated in field studies relating to their investigations in endemic areas such as Brazil , Papua New Guinea , Thailand , Mali and Colombia . Trainees have also participated in field studies relating to their investigations in endemic areas such as Brazil , Thailand , Mali and Columbia . Public concerns have also been raised about lack of access to State non-NPDES CAFO programs . Concerns have also been raised over the dangers of exploiting tree species for which there may be little scientific knowledge of their distribution and conservation status or ecological requirements for successful regeneration ( 7 , 10 , 12 , 22 ) . The upgrade was successfully completed on 21 March 1995 with initial testing showing that not only had the concurrent data and video problem been rectified , but other unexplained breaks had also been corrected . Other outfitters have also been known to tote along tables , chairs , enormous dining tents - unnecessary gear that can double the number of porters on a trek . Privacy concerns have also been raised over the consolidation and use of massive federal databases , touched off last week by the Secret Service 's involvement in a plan to compile a national database of driver 's license photos . Concerns have also been raised that the carton labeling for Jr. TYLENOL Meltaways 160 mg may be confusing to some consumers in determining the proper dosage .