Natural history

https://www.outsourcing-pharma.com/Article/2019/07/17/Natural-history-studies-essential-for-rare-disease-drug-development?utm_source=EditorsSpotlight&utm_medium=email&utm_campaign=2019-08-28&c=%2BX3iH5DUR%2F3M7SP1CyDxzn%2BkiU%2FNv%2BM%2B