A much more efficient (file size) version. If the lines aren't thick enough, it's easy to increase (or decrease) as this one uses strokes not fills. 紅十字急救圖標優化 EKG、First Aid、Health、Heart Rhythm、Hospital、Icon、Medical、Medicine、Optimized、Red Cross、remix 233813 心電圖、急救、健康、心律、醫院、圖標、醫、醫學、優化、紅十字、混音233813 資料來源:openclipart ( https://openclipart.org/ )