. . "630" . . "c4a021faca28fd3ea473fa8f73d4a5677902fffc" . . . . "10.1016/s1470-2045(20)30217-5" . . . "10.1016/s1470-2045(20)30217-5" . "Elsevier BV" . . . . . . "21" . "2020-05"^^ . "10.1016/s1470-2045(20)30217-5" . . "629" . . . . . "630" . "629" . . . . . . . . . . "Cancer guidelines during the COVID-19 pandemic" . . . "21" . . . . . . . . .