Zhou Q, Wang Y, Zhang J, Shao Y, Li S, Wang Y, Cai H, Feng Y, Le W. Fingerprint analysis of Huolingshengji Formula and its neuroprotective effects in SOD1G93A mouse model of amyotrophic lateral sclerosis. Scientific Reports. 2018 Jan 26;8(1):1668. doi: 10.1038/s41598-018-19923-9.