| Fascioliasis prevalences among animals and human in Upper Egypt ANA Hussein, RMA Khalifa Journal of King Saud University-Science 22 (1), 15-19, 2010 | 47 | 2010 |
| Present status of protozoan pathogens causing water-borne disease in northern part of El-Minia Governorate, Egypt R KHALIFA, AK Ahmad, EH Abdel-Hafeez, FA Mosllem Journal of the Egyptian Society of Parasitology 44 (3), 559-566, 2014 | 41 | 2014 |
| Development and hatching mechanism of Fasciola eggs, light and scanning electron microscopic studies ANA Hussein, IM Hassan, RMA Khalifa Saudi journal of biological sciences 17 (3), 247-251, 2010 | 32 | 2010 |
| Studies on heterophyid cercariae from Assiut Province, Egypt. I. Notes on the life cycle of Haplorchis pumilio (Looss, 1896) with a discussion on previously described species. R Khalifa, MK El-Naffer, MS Arafa | 31 | 1977 |
| Comparative morphological studies on three Sarcocystis species in Sohag, Egypt. RM Khalifa, NA El-Nadi, FG Sayed, EK Omran Journal of the Egyptian Society of Parasitology 38 (2), 599-608, 2008 | 30 | 2008 |
| Manganese superoxide dismutase alanine to valine polymorphism and risk of neuropathy and nephropathy in Egyptian type 1 diabetic patients TM El Masry, MAM Abou Zahra, MM El Tawil, RA Khalifa The Review of Diabetic Studies 2 (2), 70, 2005 | 30 | 2005 |
| The epidemiology of schistosomiasis in Egypt: Assiut governorate. HM Hammam, FA Allam, FM Moftah, MA Abdel-Aty, AH Hany, ... The American journal of tropical medicine and hygiene 62 (2_suppl), 73-79, 2000 | 24 | 2000 |
| Studies on Schistosomatidae Looss, 1899 (Trematoda) of aquatic birds of Poland. III. Notes on the morphology and life cycle of Dendritobilharzia pulverulenta (Braun, 1901). R Khalifa | 24 | 1976 |
| Heterophyid parasites of man from Idku, Maryut and Manzala lakes areas in Egypt. MM Youssef, NS Mansour, HN Awadalla, NA Hammouda, R Khalifa, ... | 23 | 1987 |
| Phlyctenular eye disease in association with Hymenolepis nana in Egypt. MK Al-Hussaini, R Khalifa, AT Al-Ansary, GH Hussain, KM Moustafa British Journal of Ophthalmology 63 (9), 627-631, 1979 | 23 | 1979 |
| Studies on Schistosomatidae Looss, 1899 (Trematoda) of aquatic birds of Poland. I. On the life cycle of Bilharziella polonica Kowalewski, 1895, with a discussion of the … R Khalifa | 23 | 1972 |
| Studies on Schistosomatidae Looss, 1899 (Trematoda) of aquatic birds of Poland. II. Gigantobilharzia mazuriana sp. n., with a discussion of the subfamily Gigantobilharziinae … R Khalifa | 22 | 1974 |
| Epidemiological, Morphological, and Morphometric Study on Haemonchus spp. Recovered From Goats in Egypt A Gareh, NM Elhawary, A Tahoun, AM Ramez, DMM El-Shewehy, ... Frontiers in Veterinary Science 8, 705619, 2021 | 21 | 2021 |
| Experimental infections with Fasciola in snails, mice and rabbits ANA Hussein, RMA Khalifa Parasitology research 102, 1165-1170, 2008 | 19 | 2008 |
| Studies on some developmental stages in the life cycle of Pygidiopsis genata Looss, 1907 (Trematoda: Heterophidae) from Egypt. MM Youssef, NS Mansour, NA Hammouda, HN Awadalla, R Khalifa, ... | 19 | 1987 |
| Epidemiological, morphometric, and molecular investigation of cystic echinococcosis in camel and cattle from upper Egypt: current status and zoonotic implications A Gareh, AA Saleh, SM Moustafa, A Tahoun, RS Baty, RMA Khalifa, ... Frontiers in Veterinary Science 8, 750640, 2021 | 17 | 2021 |
| Description of eggs and larval stages of Fasciola, light and scanning electron microscopic studies ANA Hussein, IM Hassan, RMA Khalifa Research Journal of Parasitology 5 (1), 1-12, 2010 | 17 | 2010 |
| Phenotypic description and prevalence of Fasciola species in Qena Governorate, Egypt with special reference to a new strain of Fasciola hepatica ANA Hussein, RMA Khalifa Journal of King Saud University-Science 22 (1), 1-8, 2010 | 17 | 2010 |
| Cats as reservoir hosts of Toxocara and other parasites potentially transmissible to man in Egypt. MS Arafa, NT Nasr, R Khalifa, AH Mahdi, WS Mahmoud, MS Khalil | 15 | 1978 |
| Parasitofauna of the Egyptian aquatic birds. II. Trematode parasites of the giant heron (Ardea goliath) in Assiut governorate. MK El-Naffar, RM Khalifa, AA Sakla | 14 | 1980 |
