This package contains a copy of International Medical Guide for Ships, Third Edition and a copy of the Quantification Addendum which contains recommended quantities, indications and dosing for 55 medicines listed in the International Medical Guide for Ships, Third Edition, as well as a copy of the Third Edition of Guide to Ship Sanitation which provides revised sanitary measures taken in ships, to safeguard the health of travellers and workers and to prevent the spread of infection from one country to another.