Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Dr. Menkes wrote a medical thriller!

Every pediatrician knows Dr. Menkes as an author of Textbook of Child Neurology or a discoverer of 'Menkes kinky hair syndrome.' I haven't read through the thick textbook yet, but I finished The Angry Puppet Syndrome to the last page. I don't like the ending and the scene of some Japanese researchers making a blunder, although it is quite realistic, unfortunately. I found the author a very good storyteller and learned some of the research funding system of the US which is quite different from Japan. I expect his next novel eagerly.