Meanings of investigate intensively in English

While the role of Tregs in HIV has been investigated intensively, it remains an unresolved topic.

Since pig is an important livestock species worldwide, its gene expression has been investigated intensively, but rarely in brain.

The genetic contribution to SIDS has been investigated intensively and to date, 14 cardiac channelopathy genes have been associated with SIDS.

Graphene, a single atomic layer of covalently bonded carbon atoms, has been investigated intensively for optoelectronics and represents a promising candidate for high-speed electronics.