Cover image: Top row: Abstract representation of Turner syndrome as X and O's (contributed by the author, Montgomery et al., 2021). Second row: Left panel is a photograph of the sarcophagus of Djeho (courtesy of Dr. Chahira Kozma, in Botto, 2021); middle panel shows a depiction of Hāloa (contributed by the artist Solomon Enos, in Dowsett et al., 2021); right panel shows “Don Baltasar with a Dwarf” (with permission from the Museum of Fine Arts, in Klein et al., 2021). Third row: Left top panel shows a pictograph of possible conjoined twins (with permission by Scott Cressman, in Tekendo-Ngongnang et al., 2021); left lower panel shows a marginal detail from the Luttrell Psalter depicting ectrodactyly/split hand and foot (with permission from the British Museum and Bridgeman images, in McPherson and McPherson 2021); right panel shows a depiction of an oral cleft in a pottery from the Moche (with permission from the Museo Larco, Lima, Peru in Pachajoa, Heyne, et al., 2021).

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封面图片，第 187 卷，第 2 期，2021 年 6 月

封面图片：顶行：将特纳综合征抽象表示为 X 和 O（由作者提供，蒙哥马利等人，2021 年）。第二行：左面板是 Djeho 石棺的照片（由 Chahira Kozma 博士提供，博托，2021 年）；中间面板显示了对 Hāloa 的描绘（由艺术家 Solomon Enos 提供，Dowsett 等人，2021 年）；右侧面板显示“Don Baltasar with a Dwarf”（获得美术博物馆许可，Klein 等人，2021 年）。第三行：左上图显示可能的连体双胞胎的象形图（经 Scott Cressman 许可，在 Tekendo-Ngongnang 等人，2021 年）；左下图显示了 Luttrell Psalter 的边缘细节，描绘了手足外翻（经大英博物馆和布里奇曼图像许可，在 McPherson 和 McPherson 2021 中）；