H. Ragazzoni

发表

H. Waskin, W. Parkin, J. Porter, 1988, American Journal of Public Health.

D. Swerdlow, L. Finelli, K. Mertz, 1992, The Journal of infectious diseases.

H. Ragazzoni, G. Perl, 1962, Obstetrics and gynecology.

H. Ragazzoni, G. Perl, 1963, Obstetrics and gynecology.