Perceptions of Homeless Adults and Their Providers on Coping With the Impact of COVID-19 Pandemic on Mental Health, Substance Use, and Harm Reduction Services oleh Adeline M. Nyamathi, Lillian Gelberg, Darlene Lee, Nicholas Arce, Alexandria Patten-Jones, Kartik Yadav, Maniyah Goodwine, Mitra Alikhani, Maritas Yao, Alicia H. Chang, Benissa E. Salem