The phrase "a very severe form" is correct and usable in written English.
It can be used to describe an extreme or intense version of something, often in a medical or psychological context.
Example: "The patient was diagnosed with a very severe form of the disease, requiring immediate intervention."
Alternatives: "an extremely serious type" or "a highly intense variant".
The V94M mutation has been associated with a very severe form of type III galactosemia.
The pathophysiology of cluster headache (CH), a very severe form of primary headache [1], is not yet fully known [2].
She had a very severe form of the disease, which rarely appears in childhood, and of the mutation that causes it.
Only one patient had a very severe form (IVb).
The dominant ACTA1D286G mutation produces a very severe form of nemaline myopathy [ 3, 12, 31].
The mutation, Cx26A88V, is linked to a very severe form of KID syndrome, which is fatal in infancy (Haruna et al., 2010; Koppelhus et al., 2010).
The drug is NOT approved for women with the very severe form of pregnancy nausea and vomiting, hyperemesis gravidarum, and this point was not made in Kardashian West's post.
"[Medicinal cannabis] can potentially provide enormous benefits... to the quality of life of children that suffer from very severe forms of a whole range of different neurological conditions," he told reporters.
The course of MPS is variable from very severe forms, with an average expected life span of 1 or 2 decades (neuronopathic forms in particular are usually fatal diseases) to attenuated or slowly progressing ones that allow the patient to reach adulthood [1, 3, 8].
In a very severe, genetic form of microcephaly, stem cells in the brain fail to divide, according to a new study that may provide important clues to understanding how the Zika virus affects the developing brain.
Two very severe forms of allergic reaction — angioedema and Stevens-Johnson syndrome — cause swelling of the mucus membranes and lips.
