Table 3.

Role of Internet.

S. number	Area	Internet communication in eHealth
		2004–2008	2009–2014
		Ref. number	Ref. number
1	Diagnosis of disease in rural and remote areas	[52]
2	Medical education and training of health professionals	[53]	[54–59]
3	Treatment of chronic diseases like cancer, HIV/AIDS, and so forth	[60–64]	[65–80]
4	General diseases	[81]	[82, 83]
5	Services for elderly people		[84–87]
6	General significance of Internet in eHealth	[88–95]	[96–100]