1. Perinatal mortality;MacFarlane;Lancet,1979
2. British births 1970, vol I: the first week of life;Chamberlain,1975
3. British births 1970, vol II: obstetric care;Chamberlain,1978
4. E. Alberman, E. Roman, P. Pharoah, G. Chamberlain, Birthweight before and after spontaneous abortion, Br Obstet Gynæcol ((in press)).
5. Perinatal mortality by birth order within cohorts based on sibship size;Bakketeig;Br Med J,1979