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Pathology is the study and diagnosis of disease through examination of organs, tissues, cells and bodily fluids.
Pathologist is the scientist who study and diagnose the disease through examination of organs, tissues, cells and bodily fluids.
Post-mortem examination an examination of a corpse in order to determine cause of death.
Pollen Count The pollen count is a measure of the number of pollen grains of a certain type per cubic metre of air sampled, averaged over 24 hours