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Introduction To Biostatistics And Research Methods is a classic text that is for all the medical and health students, and researchers who wish to gain in-depth knowledge of Biostatistics. Summary Of The Book Biostatistics and Research Methodology explores the many applications of Statistics in the medical and health fields. It aims to create awareness of the contemporary methods of practical research. Among the many books written on Biostatistics, Introduction To Biostatistics And Research Methods By Rao P. S. S. Sundar and Richard J is very popular. This comprehensive guide has been widely accepted by students and faculty all over. The fifth edition retains all the fundamental principles as well as covers advanced topics. The book is divided in 26 chapters. Beginning with the Scope of Statistical Methods in Medicine, the book goes on to cover the Role of Statistics in Clinical Medicine and Preventive Medicine. Other topics like Variables, Measures of Dispersion, Sampling, Frequency Distribution, Probability, Measures of Central Tendency and Location are covered. The other topics covered in the book include Probability Distributions, Basis of Statistical Inference, The Chi-Square Test, Demography, Tests of Significance and Estimation, Interventional Studies, Linear Regression and Correlation. The book also covers Non-parametric or Distribution-free Statistical Tests, Vital and Health Statistics, Sample Size Determination, Observational Studies, Introduction to Research Methods, Standardised Death Rates and Life Tables, Data Processing and Presentation of Data. Introduction To Biostatistics And Research Methods offers details of the concepts of arriving at the sample size and quick solution to the estimation of the sample size. Log-rank test and Survival analysis are clearly explained with examples and illustrations. The main principles of Chi square tests are presented and explained in a simple manner. Many of the chapters like Research Methods, Observational Studies, and Interventional Studies have step-by-step instructions guide that is helpful to conduct quality research. This edition has several new sections and has a new chapter on the determination of Sample Size. All the chapters have been extensively revised by the authors. New examples and questions at the end of the chapter help in better understanding. The book also includes clues to use computer packages and answers to few selected questions. About The Authors Dr. P. S. S. Sundar Rao is a prominent Professor and writer of the Biostatistics world. He has also written An Introduction to Biostatistics – A Manual for Students in Health Statistics. Dr. Rao heads the Research department at The Leprosy Mission Trust India. He has previously served as the Director of SLRTC at Karigiri. He was also Head of the Biostatistics Department at CMC in Vellore. He has over 56 years of research experience to his credit. Rao has several awards as a Biostatistician to his credit. He has also contributed significantly to more than 200 publications in journals of National and International repute. Richard J is a professor and writer. He has served as a Professor and headed the Department of Biostatistics at the CMC in Vellore. He has over 40 years of teaching experience to his credit.