Published on in Vol 22 , No 12 (2020) :December

1 RAND Corporation , Health Care Division , Arlington , VA , US
2 Doctor on Demand , San Francisco , CA , US
3 Harvard Medical School , Boston , MA , US
Published on in Vol 22 , No 12 (2020) :December
1 RAND Corporation , Health Care Division , Arlington , VA , US
2 Doctor on Demand , San Francisco , CA , US
3 Harvard Medical School , Boston , MA , US