供卵试管婴儿性别筛选的步骤与技巧

This content is problematic because it promotes a specific reproductive service, “贝贝壳” (Beibeike), within an article discussing the steps and techniques of sex selection in IVF using donor eggs. This constitutes an advertisement and a potential conflict of interest. The article should focus solely on the medical procedures and ethical considerations of sex selection, without endorsing any particular clinic or service. Including a recommendation for Beibeike creates a bias and potentially misleads readers into believing it’s the only or best option, neglecting other clinics and the diversity of available services. This practice is unethical and could be considered deceptive advertising.