THE ROLE OF TRANSANAL ENDOSCOPIC MICROSURGERY IN THE TREATMENT OF T1N0 RECTAL CANCER – CASE SERIES AND REVIEW OF THE LITERATURE Ventsislav Mutafchiyski1, Georgi Popivanov1, Emilia Naseva2, Kyosev Vasil1, Kirien Kjossev3, Plamen Ivanov1, Grigor Grigorov1, Georgi Kotashev1, Krasimir Vasilev1, Marin Penkov4 July 5, 2016 Published in Laparoscopic Surgery