@book { , title = {The essential guide to problem substance use during pregnancy: a resource book for professionals.}, isbn = {978-1904319535}, publicationstatus = {Published}, url = {http://researchrepository.napier.ac.uk/id/eprint/7625}, keyword = {610.73 Nursing, RT Nursing, Pregnancy, drug abuse, substance use;}, year = {2011}, author = {Whittaker, Anne} }