But research on how to obtain frequency and scale invariance for sequence classification is lacking.
Additionally, a clinically usable classification is lacking.
At present, the clinical diagnosis of infections is primarily experience-based, and specific classification criteria are lacking.
Additionally, classifications of neurogenic HO are lacking; the classifications that are currently available are related to post-traumatic HO [20, 21, 22], and do not address the mechanism of neurological injury or the anatomical compartment involved with the heterotopic bone in order to guide the surgical approach [2, 3, 4, 5, 7, 8, 10, 11].
However, neurogenic HO is less well studied than the other HO types, and classifications for neurogenic HO are lacking [2, 11, 12, 13, 14]; most of the data reported relate to patients with post-traumatic HO after total hip arthroplasty [17, 18, 19].
Fibrotest and Fibroscan are the other tests with detailed fibrosis class classifications, but methodology details are lacking [ 5, 6].
To date, appropriate health state classification instruments that consider the dynamics of child development are lacking, health state classification instruments suitable for use in children aged 5 years and younger have not been established, and the role of proxies for measuring and valuing children's health-related quality of life is not fully understood [ 82].
First, due to differences in diagnostic methods and classification, current prevalence rates around Europe are lacking [35].
While significant advancements have been achieved over the last few decades particularly in terms of genetic linkage, clinical classification and patient care, effective treatments are lacking.
Even though statistical significance of differential expression of these genes was lacking, classification by occurrence of GO terms [ 9] revealed disparate expression of genes involved in energy metabolism between DM2 and normal.
Sagittal magnetic resonance imaging (MRI) sequences are reliable in detection of nerve root contact to intraforaminal disc material, but a clinically relevant classification of degree of contact is lacking.
