US: temporary delays — postal services aligning new import rules, 
Europe: 1–2 weeks, 🌍 Worldwide: 1–4 weeks ✈️Loading...
David D Celentano, Moyses Szklo, Youssef Farag, 2024
Continuing the legacy of Dr. Leon Gordis, this edition offers a foundational understanding of epidemiologic principles and their real-world applications in public health and clinical settings. Written by experts from Johns Hopkins University, the text is recognized for its accessible style and practical approach to a complex subject. It covers the progression from observation and hypothesis development to data collection and analysis, reflecting contemporary epidemiological practice.