The phrase "additional factors are" is correct and usable in written English.
You can use it when introducing or discussing extra elements or considerations related to a topic.
Example: "In evaluating the project's success, additional factors are necessary to consider, such as market trends and customer feedback."
Alternatives: "further elements are" or "extra considerations are".
Additional factors are proposed.
This does not mean that the search for traits of invasive species is not worthwhile, but does indicate that additional factors are important.
Additional factors are classroom interactions between girls and boys and the often hostile and unaccommodating climate shown by teachers within classrooms for girls interested in science and technology.
A structural view of the virus-receptor interaction or at least of the receptor would be more instructive about whether additional factors are involved in the attachment step.
These observations suggest that the provision of osteogenic cells alone is insufficient to enhance bone healing and that additional factors are required to initiate this process in vivo.
This suggests additional factors are needed for coeliac disease to develop; that is, the predisposing HLA risk allele is necessary but not sufficient to develop coeliac disease.
These findings strongly suggest that additional factors are important for the fusion process in the intestine.
It is also possible that additional factors are involved in stabilising BubR1 at the kinetochore.
The chromodomain is responsible for binding to H3K9Me, although additional factors are required to specify HP1 targeting [32] [34].
Taken together, these data indicate that additional factors are involved in the inheritance process, including additional regulators of actin organization.
This suggests that Tfam alone is unable to drive the level of mitochondrial biogenesis observed during brown adipose conversion and that additional factors are required.
