“…Over half of the studies (26/47, 55%) were published from 2019 onward [11,32,34,37,40,[42][43][44][45][46][48][49][50][51][52][53][54][55][58][59][60][61]65,66,71,72,[76][77][78], including 6 published in the first quarter of 2021 [42,46,49,54,55,60]. All papers except 1 [32] were published in high-income countries, and 24/47 studies (51%) were published in the United States [6,32,34,36,39,43,45,47,48,51,52,54,[56][57]…”