Correction: PD-L1 expression heterogeneity in non-small cell lung cancer: evaluation of small biopsies reliability

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Oncotarget. 2018; 9:37077-37077. https://doi.org/10.18632/oncotarget.26475

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Enrico Munari1,2, Giuseppe Zamboni1, Marcella Marconi1, Marco Sommaggio1, Matteo Brunelli2, Guido Martignoni2,3, George J. Netto4, Francesca Moretta5, Maria Cristina Mingari6, Matteo Salgarello7, Alberto Terzi8, Vincenzo Picece9, Carlo Pomari10, Gianluigi Lunardi9, Alberto Cavazza11, Giulio Rossi12, Lorenzo Moretta13 and Giuseppe Bogina1

1 Department of Pathology, Sacro Cuore Don Calabria Hospital, Negrar, Italy
2 Department of Pathology AOUI, University of Verona, Verona, Italy
3 Department of Pathology, Pederzoli Hospital, Peschiera del Garda, Italy
4 Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
5 Department of Laboratory Medicine, Sacro Cuore Don Calabria Hospital, Negrar, Italy
6 Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
7 Department of Nuclear Medicine, Sacro Cuore Don Calabria Hospital, Negrar, Italy
8 Department of Thoracic Surgery, Sacro Cuore Don Calabria Hospital, Negrar, Italy
9 Department of Oncology, Sacro Cuore Don Calabria Hospital, Negrar, Italy
10 Department of Pulmonology, Sacro Cuore Don Calabria Hospital, Negrar, Italy
11 Department of Pathology, Arcispedale S. Maria Nuova/IRCCS, Reggio Emilia, Italy
12 Department of Pathology, Azienda USL Valle d’Aosta, Aosta, Italy
13 Immunology Research Area, IRCCS Bambino Gesu Pediatric Hospital, Rome, Italy

Published: December 11, 2018

This article has been corrected: In the Materials and Methods section, regarding theTissue Microarray Construction, the diameter of the TMA core is incorrect. The proper value should be 1 mm, not 0.6 mm, as shown below:

Tissue microarray construction

For every case, all H&E stained slides were reviewed for diagnosis confirmation; one block was then selected for tissue microarray (TMA) construction. It has been demonstrated that TMAs containing at least 3 cores per case yield satisfactory agreement compared with whole section in lung cancer [14]. Therefore, for each block, 5 cores with a diameter of 1 mm were obtained randomly from the diverse areas of the tumor. Overall, 11 TMAs were built.

Original article: Oncotarget. 2017; 8:90123-90131. DOI: https://doi.org/10.18632/oncotarget.21485.

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PII: 26475