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He was stunned after just one look. He stood at the door with people piled up behind him.

Although there were many people, none of them dared to crowd around.

Su Yun found the old man somewhat familiar, so he nudged the Professor with his elbow and asked, "Who is that person? Why does he look so familiar?"

Rudolf Wagner was originally focused on Zheng Ren's lecture. Although he had already mastered the new TIPS surgery method, Zheng Ren's lecture was so dazzling that he could not take his eyes off it as long as he listened to a few sentences.

People like Su Yun who were determined not to listen to Zheng Ren's lecture and only played with their phones were as rare as phoenix feathers and unicorns... He was the only one.

"Oh my God!!!" the Professor took a look and exclaimed.

The suppressed exclamation was like a bolt of lightning that flashed through Su Yun's heart. He immediately remembered who he was!