Blemings who made an invaluable contribution to this project with his omnipotent technical advise. Special thanks is due to Dr. Dale Porter whose useful inputs and criticism led to the improvement of this research project. I acknowledge the valuable contribution of Mr. Nabil Al-Humadi (NIOSH), in familiarization with the general techniques of the HPLC procedure. I also acknowledge the generous help of Diana Keller and Elizabeth Falkenstein in the early and latter stages of this project, respectively. I wish to acknowledge the National Aviary in Pittsburg and its curator Jim Bonner for their constant enthusiasm and cooperation with obtaining samples and for the use of their facility. I am grateful to West Virginia University for awarding me the graduate research assistantship, which is duly acknowledged. I would also like to extend my appreciation to my fellow graduate students for making time in the laboratory enjoyable. v
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