A survey of COVID-19 contact-tracing apps von Min-Allah, Nasro, Alahmed, Bashayer Abdullah, Albreek, Elaf Mohammed, Alghamdi, Lina Shabab, Alawad, Doaa Abdullah, Alharbi, Abeer Salem, Al-Akkas, Noor, Musleh, Dhiaa, Alrashed, Saleh

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