Stay connected with friends and family worldwide using a popular messaging app. WhatsApp is totally free to use, and it's accessible on all iOS and Android devices. Here are a few causes why you should try WhatsApp a try: * Send messages quickly. * Make costless voice and video calls across Wi-Fi or mobile data. * Create discussion groups with up

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Microneedle patches have emerged as a innovative drug delivery system, offering a minimally invasive and pain-free alternative to traditional injection methods. These biodegradable patches are comprised of tiny needles embedded in a hydrogel matrix that gradually dissolves upon application to the skin. The microneedles penetrate the stratum corneum