illustration of an atypical growth on the skin that could be a sign of skin cancer. - 皮脂腺 幅插畫檔、美工圖案、卡通及圖標
medical illustration of human sebaceous glands from the scalp and nose - 19th century - 皮脂腺 幅插畫檔、美工圖案、卡通及圖標
