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Pretreatment Period
The time prior to the treatment of interest. (NCI Thesaurus)
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Any relevant actions that were performed or occurred prior to a specific treatment.
The area in front of the trachea (windpipe).
An internationally developed presurgical anatomic staging system using imaging techniques: Tumor involves all 4 quadrants; there is no quadrant free of…
Hepatoblastoma Pretreatment Extent of Disease System stage in which tumor involves all four quadrants of the liver. -- 2004
An internationally developed presurgical anatomic staging system using imaging techniques: Tumor involves 3 adjoining quadrants or 2 nonadjoining quadrants; 1 quadrant or…
Hepatoblastoma Pretreatment Extent of Disease System stage in which tumor involves three adjoining quadrants or two nonadjoining quadrants, while one quadrant or…
