Title
Epidemiology in Medicine,Used
Delivery time: 8-12 business days (International)
Epidemiology is the simplest and most direct method of studying the causes of disease in humans, and many major contributions have been made by studies that have demanded nothing more than the ability to count, to think logically, and to have an imaginative idea. With the accumulation of knowledge, however, its has become harder for individuals working alone to make effective contributions, and epidemiological research is becoming increasingly a matter of teamwork, not only because of the large number of people that may have to be studied and the large amount of data that have to be collected and analyzed, but also because of the need to bring together for the design and conduct of the study clinical experience, biological understanding, statistical expertise, and many other special skills that vary from one study to another. But if, in this sense, epidemiological research is becoming more complex, the core of the subject remains essentially simple, and a good epidemiological study should be capable of description in such a way that all who are interested in the cause of disease can follow the argument and decide for themselves the validity of the conclusions.
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⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, please visit www.P65Warnings.ca.gov.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.