TWiST

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TWiST

Time without Sx of disease or toxicity AIDS A quality of life indicator, corresponding to the number of months preceding the development of a Sx with ≥ grade 3 HIV disease, whichever occurred first. See Q-TWiST.
References in periodicals archive ?
For a larger-than-average vehicle, the steering was as precise as you'll get on any average rep mobile and, along with its independent suspension system, the Tribute felt completely at ease even when pushed along at speed on the twistiest of B-class roads.
It may vie for the twistiest curves, trendiest digs and some of the headiest views in Los Angeles.
The few high-speed roads never lead where you want to go, and the B-roads are among the twistiest in the land.