(redirected from None Detected)
NDTDNone Detected
References in periodicals archive ?
MLVA, multilocus variable-number tandem repeat analysis; MT, MLVA type; ND, none detected.
The presence of any nitrates and/or nitrites and the semiquantitive determination of these ion levels (none detected, 10, 25, 50 100, 250, 500 mg/L [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII]; none detected, 1, 5, 10, 20, 40, 80 mg/L [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], as provided by the Merckoquant dipsticks; Merck, Darmstadt, Germany) were measured in the tap water in homes of mothers of 119 of the 540 children with brain tumors (22%) and 191 of 801 control children (24%).