[OBSERVATIONS ON THE MORTALITY OF TWINS DURING THE 1ST YEAR OF LIFE. STATISTICAL RESEARCH ON 848 TWINS BORN IN CATANIA].
D004200:Diseases in Twins; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D007558:Italy; D014427:Twins
DISEASES IN TWINS; INFANT; INFANT MORTALITY; INFANT, NEWBORN; ITALY
INDAGINE SULLA MORTALIT'A DEI GEMELLI NEL PRIMO ANNO DI VITA. RICERCA ANAGRAFICA SU 848 GEMELLI NATI A CATANIA.