ROLE OF TESTICULAR ANDROGEN IN SOME FASTING INDUCED METABOLIC CHANGES IN RATS.(Benha Medical Journal, May 1992). . TIME FACTOR IN THE EFFECT OF REPERFUSION OF THE ISCHEMIC CARDIAC MUSCLE ON THE CHANGES IN T WAVE VOLTAGE AND AREA, SERUM CREATINE PHOSPHOKINASE AND INFARCT SIZE.(Mansoura Medical Journal July&October 1993). ROLE OF OPIOD RECEPTORS IN ACUPUNCTURE INDUCED CHANGES IN PITUITARY-ADRENAL AXIS IN NON STRESSED AND STRESSED RATS.(Mansoura Medical Journal Jan&April 1994). OBSTRUCTIVE AIRWAY DISEASE IN ACTIVE RHEUMATOID ARTHRITIS, IS IT A REVERSABLE PROCESS.(Benha Medical Journal June 1995). ROLE OF OPIATE RECEPTORS AND Ca++ CHANNEL BLOCKERS IN STRESS INDUCED PROLACTIN SECRETION. (Benha Medical Journal Sept 1997). . EFFECT OF Ca++ CHANNEL BLOCKERS AND H2 RECEPTOR BLOCKERS ON MODULATION OF PAIN THRESHOLD AND ANALGESIC ACTIVITY OF MORPHINE IN RATS.(Benha Medical Journal May 1998). AN EXPERIMENTAL STUDY OF THE INTERACTION BETWEEN OPIOID AND ADRENERGIC RECEPTORS IN SUPRARENAL FUNCTION And LIPID METABOLISM.( Benha Medical Journal Sept. 1998). THE ROLE OF ANTIOXIDANT VITAMINS (C&E) ON EXPERIMENTALLY INDUCED GASTRIC ULCER.(Benha Medical Journal Jan 1999). THE ROLE OF OXIDANT STRESS AND PROSTAGLANDIN IN MYOCARDIAL INFARCTION AND POSSIBLE RELATIONSHIP.(Benha Medical Journal Jan 1999). EFFECTS OF ESTROGEN AND TESTOSTERONE HORMONES ON GLUCOSE TOLERANCE AND LIPID PROFILE IN FRUCTOSE-INDUCED INSULIN RESISTANCE IN RATS.(Benha Medical Journal Sept 1999). A POSSIBLE ROLE OF TESTOSTERONE HORMONE ON LIPID PEROXIDATION AND SOME PARAMETERS OF OXIDANT-ANTIOXIDANT BALANCE IN RAT MYOCARDIAL TISSUE.(Benha Medical Journal May. 2000.( ELECTROMAGNETIC FIELD EMITTED BY CELLURLAR PHONES ON STANDBY POSITION. PHYSIOLOGICAL AND TOXIC REPERCUSSIONS ON HUMAN ERYTHROCYTES.(Benha Medical Journal Sept. 2000). EFFECT OF ESTROGEN AND ANDROGEN RECEPTORS BLOCKERS ON EXPERIMENTALLY INDUCED MYOCARDIAL INFARCTION IN MALE RATS.(Benha Medical Journal Sept. 2000.( EFFECT OF INTRAVENOUS 1-ALPHA-HYDROXY CHOLECALCIFEROL ON SERUM PARATHYROID HORMONE (PTH) LEVEL AND T-CELL SUBSETS IN HEMODIALYSIS PATIENTS WITH SEVERE SECONDARY HYPERPARATHYROIDISM.(Benha Medical Journal May. 2000). 16. NASAL SPIROMETRY: A NEW APPROACH FOR SPIROMETRY TO EVALUATE RESPIRATORY FUNCTIONS Reference Values for Lung Function Tests in Adult Saudi Population