{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Orthoptics: proceedings of the Second International Orthoptic Congress, Amsterdam, 11-13 May, 1971: Editors J. Mein, J. J. M. Bierlaagh and T. E. A. Brummelkamp-Dons (International Congress series)","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-9021901579.html\">Orthoptics: proceedings of the Second International Orthoptic Congress, Amsterdam, 11-13 May, 1971: Editors J. Mein, J. J. M. Bierlaagh and T. E. A. Brummelkamp-Dons (International Congress series)</a>","width":400,"height":300}