Ambulatory monitoringISAM‘79, Proceedings of the third international symposium on ambulatory monitoringEdited by F. D. Stott, E. B. Raftery and L. Goulding, 1980, Academic Press, London, pp xxvii + 575,£21.50, ISBN 0-12-672355-9Applications of polymers in medicineSynthetic biomedical polymers: concepts and applicationsEdited by M. Szycher and W. J. Robinson, 1981, Technomic Publishing Westport, Connecticut, USA, pp 235, $39, ISBN 0 877 62 290 6