The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
Cats sold for meat alongside ducks
Timing of teratogens. Vulnerability to teratogens is greatest in the embryonic period. Source: Moore
Embryonic Period
Fetal Period
Fetal Period
If the period of a square wave is 22 ms, what is its frequency?