Primary dysmenorrhea is menstrual pain with no underlying medical cause. Secondary dysmenorrhea is menstrual pain that results from structural abnormalities or medical conditions of the reproductive ...
Sclerosing cholangitis and primary biliary cirrhosis, which is now called primary biliary cholangitis (PBC), are chronic cholestatic liver diseases, but they differ in their causes, affected bile ...
This week we dive into how Primary and Secondary Air work in burners. Weekly Boiler Tips are compiled by the knowledgeable and remarkably prolific content creators at WARE, a family owned, ...
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