Riham Omar Bakr, Mohamed Abd El-Aziz El-Raey, Christin Nader Farouk, Hadil Emad Ahmed and Ola Mohamed El-Said 2012. Radical Scavenging Activity and Cytotoxicity of Euphorbia hirta L. growing in Egypt. International Journal of Phytomedicine. 4, 4 (Dec. 2012), 525–530.