|
|
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
![The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v](https://biology-forums.com/gallery/47/medium_334766_23_04_15_12_38_58_21472871.jpeg)
![In 2007 acclaimed filmmaker Ken Burns released a documentary on World War II that triggered an angry ...](https://biology-forums.com/gallery/47/medium_646591_01_12_16_11_14_41_24168487.jpeg)