“…- For ‘COVID-19 and cancer’: Among the 134 articles, 12 were related to either guidelines/recommendations (n = 6) [ [10] , [11] , [12] , [13] , [14] , [15] ] or medical and health system organization (n = 6) [ [16] , [17] , [18] , [19] , [20] , [21] , [22] ].
- For the last 3 key words, namely ‘COVID-19 and radiotherapy’ (n = 13) [ [23] , [24] , [25] , [26] , [27] , [28] , [29] ], ‘COVID-19 and guidelines for cancer’ and ‘COVID-19 and recommendations for cancer’, the 21 additional references found were redundant and were found with the first two searches ( Fig. 1 ).
…”