Copstead, Lee-Ellen C.; Diestelmeier, Ruth E.; Diestelmeier, Michael R. (3 Sep 2016). "Alterations in the Integumentary System". Basicmedical Key (بالإنجليزية الأمريكية). Archived from the original on 2022-03-05. Retrieved 2019-07-01.
Copstead, Lee-Ellen C.; Diestelmeier, Ruth E.; Diestelmeier, Michael R. (3 Sep 2016). "Alterations in the Integumentary System". Basicmedical Key (بالإنجليزية الأمريكية). Archived from the original on 2022-03-05. Retrieved 2019-07-01.