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  2. WhatsApp - Wikipedia

    en.wikipedia.org/wiki/WhatsApp

    WhatsApp Web's user interface is based on the default Android one and can be accessed through web.whatsapp.com. Access is granted after the users scan their personal QR code through their mobile WhatsApp application. There are similar solutions for macOS, such as the open-source ChitChat, previously known as WhatsMac.

  3. WhatsApp makes it harder for scammers to steal your account - AOL

    www.aol.com/news/whatsapp-makes-it-harder-for...

    WhatsApp's new Account Protect feature will ask you to use your old device to verify when you ... verifying your connection with someone involves either scanning a QR code or comparing a 60-digit ...

  4. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    Whereas a barcode is a machine-readable optical image that contains information specific to the labelled item, the QR code contains the data for a locator, an identifier, and for web-tracking. To efficiently store data, QR codes use four standardized modes of encoding: (i) numeric, (ii) alphanumeric, (iii) byte or binary, and (iv) kanji . [4]

  5. POSTNET - Wikipedia

    en.wikipedia.org/wiki/POSTNET

    POSTNET. POSTNET ( Post al N umeric E ncoding T echnique) is a barcode symbology used by the United States Postal Service to assist in directing mail. The ZIP Code or ZIP+4 code is encoded in half- and full-height bars. [1] Most often, the delivery point is added, usually being the last two digits of the address or PO box number.

  6. Latanoprost Ophthalmic (Eye): Uses, Side Effects ... - WebMD

    www.webmd.com/drugs/2/drug-14256/latanoprost...

    Wait several minutes for your vision to clear before driving or operating machinery. Use this medication regularly in order to get the most benefit from it. Remember to use it at the same time ...

  7. Tresiba (insulin degludec): Uses, Side Effects, Interactions ...

    www.webmd.com/drugs/2/drug-170029/tresiba-flex...

    Low blood sugar (see below) Allergic reactions, such as rash and itching (see below) Pain, itching, swelling, or redness near the the injection site. More or less fat tissue at the site of Tresiba ...

  8. What Is a Coronary Calcium Scan? - WebMD

    www.webmd.com/heart-disease/coronary-calcium-scan

    Your doctor can use what’s called a coronary calcium scan to get a clearer picture of your risk for a heart attack. This heart scan uses a special type of X-ray called a CT scan. It takes ...

  9. VQ Scan: Purpose, Preparation, and Expectation - Healthline

    www.healthline.com/health/pulmonary-ventilation...

    A pulmonary ventilation/perfusion (or VQ) scan is a series of two lung scans. The scans are either performed together or one after the other, but are often referred to as one procedure. One of the ...