by Rashad, A. E., Heikal, O. A., El-Nezhawy, A. O. H., Abdel-Megeid, F. M. E.
Published in Heteroatom chemistry (2005)

by Mostafa, A.O., Abdel-Kader, R.M., Heikal, O.A.
Published in Journal of functional foods (01.09.2018)

by HEIKAL, Ola Ahmed, AKAO, Teruaki, TAKEDA, Shuichi, HATTORI, Masao
Published in Biological & pharmaceutical bulletin (01.05.1997)

by Abdel Salam, Omar M.E., Heikal, Ola A., El-Shenawy, Siham M.
Published in Pharmacology (01.03.2005)

by Abd El-Ghany, R M, Sharaf, N M, Kassem, L A, Mahran, L G, Heikal, O A
Published in Drug discoveries & therapeutics (01.12.2009)

by Gomaa, Iman Omar, Kader, Mahmoud Hashem Abdel, Eldin, Taher A. Salah, Heikal, Ola Ahmed
Published in Drug Discoveries & Therapeutics (01.06.2013)

by El Sayed, N S, Kassem, L A, Heikal, O A
Published in Drug discoveries & therapeutics (01.12.2009)

by Rashad, A. E., Heikal, O. A., El-Nezhawy, A. O. H., Abdel-Megeid, F. M. E.
Published in ChemInform (13.09.2005)