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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
The amniotic egg
Thoracentesis. A needle is inserted between the ribs to withdraw fluid from the pleural sac at the b
cullens sign
![A plant grown from a [round, yellow] seed is crossed with a plant grown from a [](https://biology-forums.com/gallery/47/medium_106027_28_09_14_7_14_15.png)
A plant grown from a [round, yellow] seed is crossed with a plant grown from a [
The absorption of cerebrospinal fluid from the subarachnoid space (blue) into a major sinus. Note ...
Cross-section of the spinal cord