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2. Tooth whitening - Wikipedia

   en.wikipedia.org/wiki/Tooth_whitening

   The bleaching agent is either carbamide peroxide, which breaks down in the mouth to form hydrogen peroxide, or hydrogen peroxide itself. The bleaching gel typically contains between 10% and 44% carbamide peroxide, which is roughly equivalent to a 3% to 16% hydrogen peroxide concentration.

3. Your winter illness guide: Why norovirus and RSV are on the ...

   www.aol.com/lifestyle/winter-illness-guide-why...

   “The tricky part about norovirus is that for people that have adopted alcohol-based hand gel as their primary way of cleaning their hands, norovirus is basically immune to those,” Conway says.

4. Hydroxycarbamide - Wikipedia

   en.wikipedia.org/wiki/Hydroxycarbamide

   Hydroxycarbamide, also known as hydroxyurea, is an antimetabolite medication used in sickle-cell disease, essential thrombocythemia, chronic myelogenous leukemia, polycythemia vera, and cervical cancer.

5. 44th parallel north - Wikipedia

   en.wikipedia.org/wiki/44th_parallel_north

   The 44th parallel north is a circle of latitude that is 44 degrees north of the Earth's equatorial plane.It crosses Europe, the Mediterranean Sea, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.

6. 44 (number) - Wikipedia

   en.wikipedia.org/wiki/44_(number)

   44 has an aliquot sum of 40, within an aliquot sequence of three composite numbers (44, 40, 50, 43, 1, 0) rooted in the prime 43-aliquot tree. Since the greatest prime factor of 44 2 + 1 = 1937 is 149 and thus more than 44 twice, 44 is a Størmer number. [3] Given Euler's totient function, φ(44) = 20 and φ(69) = 44.

7. Sodium hypochlorite - Wikipedia

   en.wikipedia.org/wiki/Sodium_hypochlorite

   Sodium hypochlorite is an alkaline inorganic chemical compound with the formula Na O Cl (also written as NaClO). It is commonly known in a dilute aqueous solution as bleach or chlorine bleach. [4]