Cases were usually ascertained from regional paediatric oncology units.
Population genetic structure of this vector has since been usually ascertained with up to 12 microsatellite loci [ 13], that were sometimes supplemented with a few single nucleotide polymorphism (SNP) markers [ 14] or Exon-Primed Intron Crossing (EPIC) markers [ 15- 17].
The method is directly applicable not only to fecal samples but also to other types of clinical samples; it could detect and identify bacterial pathogens that are usually difficult to ascertain with conventional examination procedures.
In natural disasters or terrorist attacks resulting in traumatic injuries, a roughly accurate number of surviving casualties requiring medical care is usually quickly ascertained (within hours).
Confounding is usual because prescribers in a particular clinical circumstance may choose to use one drug rather than another, and those circumstances are usually not obvious to, nor ascertained by, the researcher.
Although in-hospital per cent mortality risks can be ascertained, inpatient deaths are usually at such low rates that it may be difficult to achieve adequate statistical significance.
Because constructs are not directly observable and are usually multidimensional, it is important to ascertain that the constructs adequately define and represent the variables that the instrument purports to measure [ 16].
In L.A., those who stay through the credits are usually industry wannabes looking to see who was credited, location freak/travel writers like myself ascertaining where the movie was shot (in this case, mostly Santa Clarita and Morocco), and/or diehard fans of the flick.
In this setting, multiple blood cultures are usually collected, although their true value is still to be ascertained.
