Sentence examples for unknown catchment from inspiring English sources
If the data are from a referral hospital, the diseased population might differ from the (unknown) catchment population in numerous ways as both clients and animals have passed through various filters, e.g. degree of diagnostic work-up and financial considerations, prior to arriving at the hospital.
Base flow is recognized as an important hydrological pathway for NO3− N export, however, the base flow contribution to NO3− N loading in rice agriculture catchments remains unknown.
Residency was outside the center catchment area or unknown in 24 cases (6.4%).
This section deals with population-based cancer registers, excluding among others hospital cancer registers that are mainly used for administrative purposes, and for which the catchment population is unknown.
Although the hospital has a reference mycobacteriology laboratory and is a major referral center in Taiwan, how the study sample may have affected the results or the approximate size of its catchment of patients remains unknown.
The tool can also be used as a framework for testing hypotheses on the origin of contamination in the catchment and for identification of unknown contaminant sources.
However, many of the elements of natural watersheds, e.g. structures in the underground section or at the catchment boundaries, are often largely unknown and are very demanding to explore fully.
Although all renal replacement therapy patients in the catchment area were included, an unknown number of patients with chronic kidney disease stages 4 and 5 were missed, as the condition is underdiagnosed.
Because of water transfers through fissures, cavities, caves and phreatic channels of various sizes and unknown directions, the topographic watersheds of karst catchments have little significance for their aquifers.
However, the factors underlying CA development are still unknown, and CA has not been investigated in a catchment area based emergency ward sample.
