TY - JOUR AU - Wortsman, X; Carreño, L; Ferreira-Wortsman, C TI - Ultrasound Characteristics of the Hair Follicles and Tracts, Sebaceous Glands, Montgomery Glands, Apocrine Glands, and Arrector Pili Muscles JO - J Ultrasound Med VL - 38 PY - 2019 DO - 10.1002/jum.14888 L3 - PubMed-ID: 30570163 SP - 1995 EP - 2004 N1 - et al. ER -