A mother-daughter quest to find fellow members of an ultra-rare genetic community

A mother and daughter traveled the world searching for children with a genetic disease, NCBRS. Here's why it's nicknamed Beautiful Smile Syndrome.

一种全球仅确诊337例的罕见遗传病，从1993年一名医生记录单个患儿，到2010年锁定SMARCA2基因，再到患者家庭自建全球组织推动研究。母亲带着患病女儿走访塞浦路斯、英国和美国，串起医生、研究者与家庭的接力，也暴露出罕见病研究经费的窘境。