{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Observation and Inference: An Introduction to the Methods of Epidemiology","author_name":"Alexander Muir Walker","thumbnail_url":"https://www.ebooknetworking.net/books/091/722/big0917227077.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0917227077.html\">Observation and Inference: An Introduction to the Methods of Epidemiology</a>","width":400,"height":300}