In March NUMBER@1 the LOCATION@1 ORGANIZATION@1 issued guidelines recommending that pregnant women , nursing mothers , and children limit their intake of tuna and other types of predatory fish .

As a result , in March NUMBER@1 the LOCATION@1 ORGANIZATION@1 issued guidelines recommending pregnant women , nursing mothers , and children to limit their intake of tuna and other types of predatory fish -LSB- -RSB- .
