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peripheral zone

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peripheral zone,
a large area of the prostate, just beneath the capsule, covering the posterior and lateral aspects and composed mainly of acinar glandular tissue. Its ducts drain into the prostatic urethra along most of its length.

optic zone diameter 
Diameter of the optic zone (front or back) of a contact lens measured to the surrounding junction. It is commonly specified in millimetres. Specifically, there are the back optic zone diameter (BOZD), formerly called back central optic diameter (BCOD), and the front optic zone diameter (FOZD). It is often difficult to measure these dimensions due to the blending of the line separating the zones, especially for the back optic zone diameter. The region surrounding the central optic zone is the peripheral zone. If there is more than one, the zones will be numbered first, second, etc., beginning with the zone immediately surrounding the central optic zone. The diameter of each peripheral zone is referred to as the back (or front) peripheral zone diameter (BPZD). See blending; total diameter; edge lift.


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This is a shame, because these spaces are just as formally rich as the peripheral zones and invite colonisation.
Prostate cancer The peripheral zone consists of most of the glandular tissue, and most tumors are of glandular origin; therefore, 70% of all tumors are located in the peripheral zone.
The joined sheet has a fixed inner peripheral zone bonded to an opening's peripheral zone defining the first opening and a distal front zone extending forward from the front zone of the pad and releasably attached to the supporting sheet by means of fastener means.
 
 
 
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