MacLeod S, Tkatch R, Kraemer S, Fellows A, McGinn M, Schaeffer J, Yeh CS. COVID-19 era social isolation among older adults. Geriatrics. 2021 May 18;6(2):52. doi: 10.3390/geriatrics6020052
Mangel AW, Lothman K. Pulse synchronized contractions (PSCs): a call to action - Editorial. Open J Cardiol Heart Dis. 2018 Jan 29;1(2).