Dog lover, author, and freelance health writer Jean Callahan has contributed to five books and written articles for Self, Glamour, Parenting, and other national magazines. She has ...lihat lebih banyakDog lover, author, and freelance health writer Jean Callahan has contributed to five books and written articles for Self, Glamour, Parenting, and other national magazines. She has also written and produced many newsletters on health and pets. She lives in Salem, Massachusetts.lihat lebih sedikit