I am not sure what profession you are, but

来源: 于 2008-06-11 13:40:53 [旧帖] [给我悄悄话] 本文已被阅读：次

some society needs member referral, e.g., if you are in biomedical field and study neuroscience, the Society for Neuroscience is a referral society, which requires membership sponsor.