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Published online by Cambridge University Press: 20 January 2017
Paine's comments do not clarify problems with the data from Grasshopper. We maintain that the age/sex pyramid for the Grasshopper series remains problematical.
El comentario de Paine no clarifka problemas con los datos del sitio Grasshopper. Mantenemos que la pirámide de edad/sexo queda problemática.