BeauduinPBrassleerJLambotteRLhoistRSenterreJ. (1973) In: Seventh International Symposium on Foetomaternal Hazards in Pregnancy. Brussels (unpublished).
2.
DesmontsGCouvreurJRachidM S B. (1965) Archives Françoises de Pédiatrie, 22, 1183–1199.
3.
HutchinsonW MWorkK. (1969) Acta Pathalogica et microbiologica Scandinavica, 77, 275–282.
4.
RuossC FBourneG L. (1972) Journal of Obstetrics & Gynæcology of the British Commonwealth, 79, 1115–1118.
5.
SabinA B. (1941) Journal of the American Medical Association, 116, 801–807.
