An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Gaafar T, Helmy M, Ismail S, Afifi A, Guirguis N, el Ridi R.Gaafar T, et al. Among authors: el ridi r.J Egypt Soc Parasitol. 1992 Aug;22(2):441-51.J Egypt Soc Parasitol. 1992.PMID: 1500785
al-Sherbiny M, el Ridi R, Guirguis NI, Dean DA.al-Sherbiny M, et al. Among authors: el ridi r.Int J Parasitol. 1995 Jan;25(1):113-21. doi: 10.1016/0020-7519(94)e0067-w.Int J Parasitol. 1995.PMID: 7541026Clinical Trial.
Osman A, el Ridi R, Guirguis N, Dean DA.Osman A, et al. Among authors: el ridi r.Int J Parasitol. 1994 Nov;24(7):943-50. doi: 10.1016/0020-7519(94)90158-9.Int J Parasitol. 1994.PMID: 7883445
Gaafar T, Ismail S, Helmy M, Afifi A, Guirguis N, el Ridi R.Gaafar T, et al. Among authors: el ridi r.Parasitol Res. 1993;79(2):103-8. doi: 10.1007/BF00932254.Parasitol Res. 1993.PMID: 8475026
El Ridi R, Farouk F, Sherif M, Al-Sherbiny M, Osman A, El Gengehi N, Shoemaker CB.El Ridi R, et al. Among authors: el gengehi n.J Infect Dis. 1998 May;177(5):1364-72. doi: 10.1086/515274.J Infect Dis. 1998.PMID: 9593026