講演1「からだに優しい癌の手術-内視鏡外科の進歩－」渡邊昌彦（北里大学医学部外科）

New channel 一般社団法人日本癌学会: title sample judged 'whole' (Official Japanese Cancer Society channel of expert oncology lectures from public symposia, consistently educational with); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.