| http://www.w3.org/ns/prov#value | - The impressive quantity and quality of information supplied and written in a format that is readily understood, makes this text an invaluable resource for the understanding and prescribing of contact lenses.Michael Doyle, Optometrist, Bassendean Optical, philadelphia, USA???Contact Lenses is a marvellous book and a pleasure to read???.Anyone with the fourth edition of Contact Lenses should serio
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