Wide-field unstained pseudocolorized UV image of a sample collected from the bone marrow of a healthy donor (A) along with the corresponding white-light bright-field microscopy image after staining (B). (Scale bars: 200 µm.) The selected magnified insets highlight cellular features of various myelopoietic and erythropoietic cells such as promyelocytes (orange arrowheads), myelocytes (brown arrowheads), metamyeloctes (black arrowheads), band neutrophils (yellow arrowheads), lymphocytes (red arrowheads), and normoblasts (blue arrowheads). (Inset scale bars: 30 µm.)