In 1864, the first barbiturate (barbituric acid) was synthesized.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Variation in coat pattern in zebras. The patterns show progressively more black left to right and to
Percussion Patterns, Left Lateral Thorax
Space
Large-scale circulation systems produce global climate patterns
Heat Patterns
Mass spectrometry (MS) patterns for a trypsin-digested peptide sequence