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So why has it languished in relative medical obscurity? The LDN Book explains: - The drug’s origins - Its primary mechanism - The latest research from practicing physicians and pharmacists Compiled by Linda Elsegood of The LDN Research Trust—the world’s largest LDN charity organization with over 19,000 members worldwide—the book features ten chapters contributed by medical professionals on LDN’s efficacy and two patient-friendly appendices. 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