There were substantial differences between this dataset and ours, namely its source (frozen tissue specimens), array platform (Agilent), smaller sample size and event number, and the fact that metastasis was reported as a binary, not time-censored, outcome.
As an efficient, space-saving method to cool the container and the material specimens, an array of mini-channels (1 mm gaps) through which low pressure (0.3 MPa) helium gas is flowing is established.
To decrease error introduced by sampling and to minimize the impact of tissue loss during processing, duplicate tissue cores per specimen were arrayed on a recipient paraffin block.
Next, using these H&E slides for reference, four 0.6 mm core biopsies were taken from each tumour specimen and arrayed on a recipient paraffin block using a tissue microarrayer (Beecher instruments, Silver Spring, Maryland, USA).
Up to now a large number of microarray data has been collected in public repositories such as GEO (Gene expression Omnibus of NCBI) or ArrayExpress (EBI) referring to a wide variety of different conditions, specimen and array-types.
Areas of interest were circled on the H&E section and a representative core (0.6 mm) of each specimen was arrayed on a receiver paraffin block using the MArrayer (Pathology Devices).
In summary, we used a novel approach to analyze the data obtained with flow-sorted tumor specimens using array CGH, which provides a new insight into the genomic complexity of breast cancer.
To minimize any sampling error and to reduce the impact of tissue loss during processing, duplicate tissue cores for each specimen were arrayed on a second recipient paraffin block.
Single cantilever beam specimens incorporating arrays of FBG sensors are subjected to monotonic and fatigue debonding tests.
As specimens were arrayed in quadruplicate a median HMG-CoAR autoscore was calculated for each tumour.
Two 1.0-mm diameter cylinders were punched from each of the 105 specimens and arrayed in three tissue microarray blocks.
