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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
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.
Cyanide works by making the human body unable to use oxygen.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.
![Injecting an IV push (bolus) medication; C, another type of needleless syringe and needleless IV acc](https://biology-forums.com/gallery/47/medium_18099_26_09_12_4_39_03.jpeg)
![Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_14_26_100221543.jpeg)