Table 2. Search items for amyotrophic lateral sclerosis.

A.L.S.: amyotrophic lateral sclerosis

Date	Search items	Platform	Reference no.
180722	A comparison between edaravone and riluzole; indication and efficacy	Google Scholar	[2]
180722	Upper motor neuron and lower motor neuron pathology	ScienceDirect	[3] [4]
190722	Genes mutated in A.L.S.	researchgate	[6]
190722	Clinical features of A.L.S.	1library.net	[8]
200722	Symptoms and diagnosis of A.L.S.	PubMed	[9][10]
210722	Treatment modalities	WebMD, als.org	[11] [12] [13]