Core Viewpoint - Aikang Guobin has filed a lawsuit against Zhang Xiaoling for defamation, seeking 10 million yuan in damages due to alleged false claims about the company's health check services [1][2]. Group 1: Legal Proceedings - Aikang Guobin has initiated legal action in the Shanghai Pudong New District People's Court, claiming that Zhang Xiaoling's statements have harmed the company's reputation [1][2]. - Zhang Xiaoling has received the court summons and has raised jurisdictional objections while preparing to respond to the lawsuit [1]. - The lawsuit claims that Zhang Xiaoling exaggerated her medical condition, stating she was diagnosed with late-stage kidney cancer, while Aikang Guobin asserts that the diagnosis was early-stage [1][3]. Group 2: Company Response - Aikang Guobin's spokesperson indicated that the company prefers to let the judicial process handle the matter and does not wish to occupy public resources with further comments [1]. - The company emphasized that Zhang Xiaoling's allegations have caused significant harm to its reputation and misled the public regarding the private health check industry in China [2]. Group 3: Medical Dispute - The core dispute revolves around the timing and accuracy of Zhang Xiaoling's cancer diagnosis, with Aikang Guobin asserting that the medical report clearly indicated early-stage kidney cancer [3]. - Zhang Xiaoling claims that the early diagnosis was a misdiagnosis and that her condition had already progressed to bone metastasis [1][6]. - Aikang Guobin's representatives clarified that early diagnosis of kidney cancer relies more on imaging studies rather than blood tests, countering Zhang Xiaoling's claims regarding the relevance of cancer markers [7].