human 6 point of care ultrasound Article 4 Humans 3 Ultrasonography 3 adult 3 echography 3 male 3 Internal medicine 2 Point-of-Care Systems 2 Point-of-care ultrasound 2 aged 2 clinical article 2 controlled study 2 diagnostic imaging 2 dyspnea 2 emergency ward 2 female 2 follow up 2 human tissue 2 length of stay 2 point of care system 2 Aged 1 Biological organs 1 Bosniak classification 1 Brazil 1 C reactive protein 1 COVID-19 1 Cadaver 1 Caucasian 1