Because the traditional cell culture method for C trachomatis detection is no longer readily available, requests for C trachomatis nucleic acid tests in the liquid-based specimens are often for both symptomatic and asymptomatic patients.
Specimens are often confused with the better known Saint-Cloud porcelain.
Besides having degraded DNA, preserved museum specimens are often irreplaceable.
Bone surrogate specimens are often employed to avoid this confounding variable.
The particles are loosely attached and easily washed away, so that older specimens are often smooth.
The centre generally has several darker shades, and younger specimens are often darker.
Human cadaveric specimens are often obtained from anatomical institutes.
In order to avoid a sampling bias or negative histology, multiple specimens are often taken.
In addition, specimens are often batched for analysis prolonging turnaround time.
Specimens are often culture positive even those from patients pretreated with effective antimicrobial drugs (22 ).
Adult marrow specimens are often of limited availability and rarely come from normal donors.
