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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

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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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Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

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There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb
Glaucoma. (a) A buildup of pressure within the eye cavities, often caused by a blockage of vessels t Glaucoma. (a) A buildup of pressure within the eye cavities, often caused by a blockage of vessels t
Cranial Nerves Cranial Nerves
The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ... The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ...
Cranial Nerves (Part 2) Cranial Nerves (Part 2)
Number line (real numbers) Number line (real numbers)
Video: Replication of DNA and Chromosomes/ How do cells replicate their DNA? (Animation) no Audio

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