Abstract: A system for medically treating a child comprising a flexible membrane, with indicia thereon, and a plurality of portions, extending distally along the membrane from the start portion. Each portion has at least a second indicia thereon. The second indicia has a characteristic indicative of the developmental age of a child disposed along the membrane. At least one book has pages, each page of the book having the one of the respective at least second indicia thereon. Each page having at least a third indicia corresponding to at least one of a medicine and dosage and the item of medical equipment and size for use with a child of the developmental age indicated by the at least second indicia.