Correction: Predatory journals: Perception, impact and use of Beall's list by the scientific community-A bibliometric big data study.

[This corrects the article DOI: 10.1371/journal.pone.

Predatory journals: Perception, impact and use of Beall's list by the scientific community-A bibliometric big data study.

Beall's list is widely used to identify potentially predatory journals. With this study, we aim to investigate the impact of Beall's list on the perception of listed journals as well as on the publication and citation behavior of the scientific community. We performed comprehensive bibliometric analyses of data extracted from the ISSN database, PubMed, PubMed Central (PMC), Crossref, Scopus and Web of Science.

Circulating Tumor DNA as a Marker for Treatment Response in Metastatic Melanoma Patients Using Next-Generation Sequencing-A Prospective Feasibility Study.

We prospectively performed a longitudinal analysis of circulating tumor DNA (ctDNA) from 149 plasma samples and CT scans in Stage III and IV metastatic melanoma patients ( = 20) treated with targeted agents or immunotherapy using two custom next-generation sequencing (NGS) Ion AmpliSeq™ HD panels including 60 and 81 amplicons in 18 genes, respectively. Concordance of matching cancer-associated mutations in tissue and plasma was 73.3%.

The window of opportunities for targeted therapy in BRAFwt/NRASwt/KITwt melanoma: biology and clinical implications of fusion proteins and other mutations.

Treatment options in advanced melanoma have been subject to a major change over the last years. The discovery of the oncogenic point mutation BRAFV600E and subsequently developed BRAF inhibitors had a major impact on patient's survival. Further important mutations have been found in the NRAS gene, although not yet druggable, and others involve c-kit in acral and mucosal melanoma.