Results of liquid biopsy studies by next generation sequencing in patients with advanced stage non-small cell lung cancer: Single center experience from Turkey oleh Buyuksimsek M, Togun M, Oguz Kara I, Bisgin A, Boga I, Tohumcuoglu M, Ogul A, Evren Yetisir A, Sahin B, Sumbul HE, Mirili C