👤 Szymanek-Pasternak, Anna Keywords Articles (1) Severe course of COVID-19 in a middle-aged man without risk factors. 👤 Szymanek-Pasternak, Anna 👤 Serafinska, Sylwia 👤 Kucharska, Marta 👤 Szymanski, Wojciech 👤 Simon, Krzysztof ⏰ 2020 📚 Pol Arch Intern Med