PeerJ Author 135 Points Contributions by role Author 135 Contributions by subject area Cell Biology Oncology Pharmacology Majd S Hijjawi PeerJ Author Summary Cell Biology Oncology Pharmacology PeerJ Contributions Articles 1 January 8, 2019 The effect of cycling hypoxia on MCF-7 cancer stem cells and the impact of their microenvironment on angiogenesis using human umbilical vein endothelial cells (HUVECs) as a model Fuad M. Alhawarat, Hana M. Hammad, Majd S. Hijjawi, Ahmad S. Sharab, Duaa A. Abuarqoub, Mohammad A. Al Shhab, Malek A. Zihlif https://doi.org/10.7717/peerj.5990 PubMed 30729067