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In radiotherapy, a percentage depth dose curve (PDD) (sometimes percent depth dose curve) relates the absorbed dose deposited by a radiation beam into a medium as it varies with depth along the axis of the beam. The dose values are divided by the maximum dose, referred to as d max, yielding a
The main discussion of these abbreviations in the context of drug prescriptions and other medical prescriptions is at List of abbreviations used in medical prescriptions. Some of these abbreviations are best not used, as marked and explained here.
This is a list of roots, suffixes, and prefixes used in medical terminology, their meanings, and their etymologies. Most of them are combining forms in Neo-Latin and hence international scientific vocabulary. There are a few general rules about how they combine.
PDD Pervasive developmental disorder: PDD-NOS Pervasive developmental disorder, not otherwise specified: PDD/NOS Pervasive developmental disorder, not otherwise specified: PDS Pokkuri Death Syndrome PE Pulmonary embolism: PKAN Panthothenate kinase-associated neurodegeneration: PLMD Periodic limb movement disorder: PLS Primary lateral sclerosis: PMD
Past medical history (see also medical history) PSI: Pneumonia severity index: PSP: phenylsulphtalein: PSS: progressive systemic sclerosis (see scleroderma) PSVT: paroxysmal supraventricular tachycardia: PT: prothrombin time physical therapy (physiotherapy) Pt. patient (from Latin patiens, meaning "one who endures" or "one who suffers") PTA
Many use the term PDD as a short way of saying PDD-NOS. [4] Others use the general category because the term PDD actually refers to a category of disorders and is not a diagnostic label. [4] PDD is not itself a diagnosis, while PDD-NOS is a diagnosis. To further complicate the issue, PDD-NOS can also be referred to as "atypical personality ...
Dysthymia (/ d ɪ s ˈ θ aɪ m i ə / dihs-THIY-mee-uh), also known as persistent depressive disorder (PDD), [3] is a mental and behavioral disorder, [5] specifically a disorder primarily of mood, consisting of similar cognitive and physical problems as major depressive disorder, but with longer-lasting symptoms.
Pinduoduo, NASDAQ ticker PDD; Project Design Document, a precise project description which serves as the basis for the Clean Development Mechanism (CDM) (project evaluation) Public Domain Day, an observance of when copyrights expire and works enter into the public domain