{"first_sentence": {"type": "/type/text", "value": "Changes in the amount of menstrual blood flow, duration, and pattern are among the most common health concerns that women face."}, "physical_format": "Paperback", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "weight": "1.4 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["McGraw-Hill"], "number_of_pages": 384, "isbn_13": ["9780071464734"], "id": 12569502, "edition_name": "2 edition", "isbn_10": ["0071464735"], "publish_date": "September 20, 2007", "key": "/b/OL9316724M", "authors": [{"key": "/a/OL2872969A"}], "title": "Women's Encyclopedia of Natural Medicine", "type": {"key": "/type/edition"}, "subjects": ["Popular medicine", "Specific disorders & therapies", "Women's health", "Health & Fitness", "Consumer Health", "Health/Fitness", "Alternative Therapies", "Naturopathy", "Women's Health - General", "Health & Fitness / Alternative Therapies", "Alternative treatment", "Diseases", "Generative organs, Female", "Gynecology", "Popular works"], "physical_dimensions": "7.3 x 7.2 x 1.4 inches", "revision": 1}