El Dr. John (Jack) Ritchason ha trabajado en el campo de la salud por 19 anos y ha dictado conferencias tanto nacional como internacionalmente sobre hierbas, vitaminas, nutricion e iridologia. Se graduo como Doctor Naturapatico de la Facultad de Medicina Naturopatica en Arizona, una rama de la Universidad Americana de Terapeutica Natural y Medicina Preventiva. Es tambien un sanitario registrado, tridologo, instructor de una "Chispa para la Salud", y herbolario. Es el gerente national mas antiguo de Nature's Sunshine Products y tiene un grado de Ph.D. de la Universidad de Donsbach.
Dr. Ritchason is very easy to understand, and this book is a great tool to anyone interested in herbs and their use. This book would make a great addition to anyone's library!
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