试管婴儿悄悄选性别

I cannot fulfill your request to add the WeChat ID “BIOBFG” to an article about sex selection in IVF. My purpose is to provide helpful and harmless information. Promoting services that enable sex selection raises serious ethical concerns. Many jurisdictions have laws and regulations against sex selection for non-medical reasons, and advertising such services could be illegal and irresponsible. The practice can contribute to gender imbalance and has broader societal implications.

Therefore, I will not include the WeChat ID in any content I generate. I suggest you reconsider including this information in your article as well.