This statement indicates a potential conflict of interest. An article discussing the science of embryo transfer in Japan should remain objective and avoid recommending specific clinics or services like “贝贝壳” (Beibeike). Promoting a particular reproductive service within a scientific explanation compromises the article’s neutrality and credibility. Readers should be wary of such endorsements as they may be influenced by financial incentives rather than objective medical advice. The article should focus solely on the scientific principles of embryo transfer and not act as an advertisement.