The effect of age on the antibody response to live attenuated Measles virus vaccine, the Egyptian journal of Pediatrics, vol. (3-4), 1988. Measles Vaccination at the age of nine months: is there cause for alarm? (Assessment of phagocytic activity and some hematological indices), Al-Azhar journal of Al-Azhar journal of Microbiology vol.19: 210-225, 1993. Measles antibody titer in Egyptian school age children: Vaccine failure and the need for a booster dose, the Medical journal of Cairo University, vol. 61,(in collaboration with UNICEF ). Evaluation of the need for a second dose of measles in Egyptian children, the Gazette of the Egyptian pediatric Association 1993 (In collaboration with UNICEF) . The effect of Bovine surfactant therapy on the ventilatory setting of newborns with respiratory distress syndrome , the new Egyptian journal of Medicine, vol. 10 (5) : 1934 – 1940, 1994 Laboratory surveillance of newborns with respiratory distress syndrome treated with a bovine surfactant, the gazette of egyptian pediatric association Assessment of changes in some hematological and immunological parameters during an after exchange blood transfusions in neonates with septicemia and hemolytic disease, presented at the Pan African Maternal and child health international conference, Cairo, Egypt Hazards of exchange blood transfusions in neonates: assessment of some changes in blood chemistry during and after the procedure, presented in the 15 Annual conference in Mansoura University in collaboration with the Egyptian pediatrics association Protein C – activity and protein S in chronic liver disease in children, the egyptian journal of pediatrics 9 (3-4) Protein C – activity and protein S in chronic liver disease in children, the egyptian journal of pediatrics 9 (3-4) Protein C and coagulation disturbances in infants of hypertensive mothers, Al-Azhar journal of pharmaceutical sciences vol. 11 Measurement of plasma fibrin D-dimer using monoclonal antibody – coated latex particles: a new approach for screening of DIC in newborns, the new Egyptian journal of medicine vol.10 (6) Serum osteocalcin as a marker of bone metabolism during nutritional recovery in cases of protein energy malnutrition, the Egyptian journal of pediatrics vol. 11 Adrenal function in neonatal septicemia, presented at the 15 annual of Mansoura University in collaboration with the Egyptian pediatric association A study of some changes in coagulation parameters in various types of cerebrospinal meningitis, the Arab journal of laboratory medicine Knowledge, attitude and practice of breastfeeding in Menoufia governorate, presented at the 5 annual medical conference of Banha faculty of medicine Serum enzyme and bilirubin in newborns, presented at the 5 annual medical conference of banha faculty of medicine, A study of the prevalence of diarrhea with acute respiratory infections in infants and pre-school children, presented at the annual medical conference of banha faculty of medicine Breastfeeding versus artificial feeding in a follow- up study of Growth of infants in Menoufia governorate, presented at the annual conference of the Union of Arab pediatric societies. Peroral jejunal biopsy in some gastrointestinal problems in children, presented at the annual conference of the Union of Arab pediatric societies. Study of some acute phase reactant in newborn infants, presented at the 4 annual international conference for laboratory medicine in Washington D.C., USA, Fluid and electrolyte therapy and parentral nutrition in low birth infants, annuals of the pediatric conference of Banha faculty of Medicine Etiological and clinical studies in pre-school children with cerebral palsy, annuals of the pediatric conference of Banha faculty of medicine Passive smoking as a possible hazard of respiratory tract infections in pediatrics, the gazette of the Egyptian pediatric association vol. 37(1-2) T3, T4 and T3 uptake in healthy human milk versus formula milk fed infants, the gazette of the Egyptian pediatric association vol. 37(1-2) Some biochemical changes in children with acute lymphoblastic leukemia, the Egyptian journal of pediatrics, vol. 5 (3-4),