Health authorities advises against the consumption of heads of prawns and crustaceans

Sanidad desaconseja el consumo de cabezas de gambas y crustáceos.

http://www.libertaddigital.com/salud/2011-06-30/una-agencia-de-sanidad-genera-alarma-por-el-consumo-de-pescado-y-marisco-1276428238/