The phrase 'studies believe' is correct and usable in written English.
You can use it when referring to research findings that have been published in scientific studies. For example, "Studies believe that the use of herbal supplements can help reduce the symptoms of a cold."
Many people – half of university students and 80 per cent of mental health professionals, according to two studies – believe lunar phases can affect behaviour.
Some studies believe people are less likely to make a guess about whether a suspect is a match when they view individuals one at a time.
Many patients, citing two recent high-profile studies, believe the syndrome may be caused by viruses related to mouse leukemia viruses, and they are clamoring for access to antiretroviral drugs used to treat the virus that causes AIDS.
Other studies believe that cold and dry air may cause airway narrowing through the release of leukotrienes (27).
But Emily Leithauser, 18, a freshman contemplating a major in Middle Eastern studies, believes that the only real solution lies with Harvard students themselves.
Previous studies believed that tight oil plays are largely free of buoyancy, and structural aspects are neglected in the demonstration of favorable areas (Zou et al. 2012).
These studies believed that only cirrhosis but not chronic hepatitis were associated with DM [ 17].
However students in two studies believed that doctors should lead the team [ 25, 26], even though in one of these studies students rejected hierarchial organization.
In contrast, however, a proportion of professionals in other studies believed that EFM did not necessarily ensure a good neonatal outcome.
In this sample, the projects that used physician recruiters for their studies believed this was a key factor in successful recruiting.
Understandably, bereaved families whose babies died after Fleming's first study believe his results should have been publicised at once.
