"lots of studies" is correct and usable in written English. You can use it to refer to a large number of research projects, usually carried out over a period of time. For example, "Lots of studies have been conducted on the effects of climate change.".
Lots of studies.
Lots of studies show that".
Lots of studies have shown that it is a good source of fuel, post-exercise".
"We now know from lots of studies that wood smoke is very, very irritating," Dr. Edelman said.
There were many "poor quality" studies included in the analysis: "If you exclude lots of studies you can be accused of bias.
But what really struck me was his assertion that the notion that spending is expansionary and austerity contractionary has been debunked by "lots of studies".
Mindfulness is cheap (group-based, no expensive equipment etc), effective (lots of studies to back this up); so I'd like to see it as a standard offering from GP clinics, to hospitals, to clinics dealing with specific health conditions.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia