After excluding participants whose benign biopsy specimens were of poor quality or had no breast tissue, evidence of carcinoma in situ or invasive carcinoma, invalid dates of diagnosis, or insufficient information on laterality, there were a total of 395 cases and 1,610 controls [ 29, 30].
The remaining 3 tumour and 2 mucosa specimens consistently gave spectra of poor quality (outliers), presumably as a result of specimen deterioration.
We found that high DPD expression, high ERCC1 expression, and low EGFR expression in GC specimens were significant predictors of poor survival in advanced GC.
One limitation of the study was that this was facility-level data and not patient-level; therefore, it was not possible to identify patient characteristics that may have led to increased risk of poor specimen collection.
The tale tells of four horsemen, representing war, plague, death and famine – and here they are thunderously driving across from left to right, over the poor specimens of common humanity who are being crushed beneath the hooves of the wildly stampeding horses.
The most recent study identified high MVD as an independent parameter of poor prognosis in cystectomy specimens but not in TUR-B specimens.
Two specimens were excluded on the basis of poor DNA recovery (i.e., negative rDNA PCR results, described below).
The affiliation of the four heterogeneous genera of Stelligramma, Kalligrammula, Huiyingogramma and Lithogramma to the subfamily is not consistent with our current knowledge, which is probably the result of poor preservation for specimens of these genera.
Vibration work was performed but the compacting ability of NC specimens was poor.
Among 8 remaining specimens, 1 specimen was classified as coxsackie virus A16, and other specimens were not identified as any viruses because of poor quality of sequence data.
