Acute myeloid leukaemia (AML) with central nervous system (CNS) involvement in adults is uncommon, and studies of this subject are scant.
It is not uncommon for studies to present conflicting findings, especially when the various studies perform applications of the humic substances in different ways to different plants under different growing conditions, and also varying in concentration.
It is not uncommon for studies with highly selective inclusion and exclusion criteria to incorporate a study population that has completely different demographics from the patients under the care of a typical practicing clinician, thus reducing any generalization of its results to that physician's clinic population.
It is not uncommon that studies of the same type of TKA or THA report rather different revision rates [ 31].
For instance, it is not uncommon for studies of occupational exposure to use previously-collected data to investigate a new research questions; for instance for studies of sampling strategies [ 11, 13, 21, 24].
This is not uncommon in studies in eating disorder populations [ 17] however, we cannot rule out the possibility that this study may be under-represented by those with poorer outcomes who may be less likely to participate in research.
ASC-H interpretations are uncommon, and studies involving this type of lesion are based on small numbers of cases.
Furthermore, sex differences and sex by strain interactions are not uncommon across studies of the BXD strains [62], [63], [64].
Furthermore, using strains that have undergone long-term passage and selection in the laboratory, which is not uncommon in studies estimating viral tMRCAs, would have the opposite effect of lengthening branches [21].
Although uncommon, such studies can be highly informative.
