Research Methodology & Biostatistics About the Author Dr. Suresh K. Sharma, PhD, RN, is currently Professor cum Principal, College of Nursing, All India Institute of Medical Sciences (AIIMS), Rishikesh. A gold medalist in undergraduate and postgraduate professional education, he did his postgraduate studies at PGIMER, Chandigarh and received his doctorate in administration from Panjab University, Chandigarh. He is registered as an RN with the Board of Registered Nursing, California, USA and received the coveted Florence Nightingale Award in 2001. He is a prolific writer and has published seven textbooks in his discipline, besides a number of chapters contributed and papers published in international and national journals of repute.