RETROSPECTIVE STUDIES ON TWINNING RATE IN SCANDINAVIA

[1] EASE OF CONCEPTION IN MOTHERS OF TWINS [J]. SOCIAL BIOLOGY, 1971, 18 (01): : 18 - &

[2] DO CONCEPTION DELAYS EXPLAIN SOME CHANGES IN TWINNING RATES [J]. ACTA GENETICAE MEDICAE ET GEMELLOLOGIAE, 1970, 19 (1-2): : 30 - +

[3] Berg F. T., 1880, HYGIEA STOCKHOLM, V42, P331

[4] Hereditary predispositions to dizygotic twin-births in Norwegian peasant families. [J]. JOURNAL OF GENETICS, 1926, 16 (02) : 125 - 188

[5] Boyden S.V., 1970, IMPACT CIVILIZATION

[6] DEMOGRAPHIC CHARACTERISTICS OF MULTIPLE BIRTHS IN HUNGARY [J]. ACTA GENETICAE MEDICAE ET GEMELLOLOGIAE, 1971, 20 (03): : 301 - &

[7] ERIKSSON A, 1962, ACTA GENET STAT MED, V12, P242

[8] ERIKSSON A W, 1973, Commentationes Biologicae Societas Scientiarum Fennica, V64, P1

[9] ERIKSSON AW, 1964, LANCET, V2, P1298

[10] ERIKSSON AW, 1973, AM J HUM GENET, V25, P141

[1] EASE OF CONCEPTION IN MOTHERS OF TWINS [J]. SOCIAL BIOLOGY, 1971, 18 (01): : 18 - &

[2] DO CONCEPTION DELAYS EXPLAIN SOME CHANGES IN TWINNING RATES [J]. ACTA GENETICAE MEDICAE ET GEMELLOLOGIAE, 1970, 19 (1-2): : 30 - +

[3] Berg F. T., 1880, HYGIEA STOCKHOLM, V42, P331

[4] Hereditary predispositions to dizygotic twin-births in Norwegian peasant families. [J]. JOURNAL OF GENETICS, 1926, 16 (02) : 125 - 188

[5] Boyden S.V., 1970, IMPACT CIVILIZATION

[6] DEMOGRAPHIC CHARACTERISTICS OF MULTIPLE BIRTHS IN HUNGARY [J]. ACTA GENETICAE MEDICAE ET GEMELLOLOGIAE, 1971, 20 (03): : 301 - &

[7] ERIKSSON A, 1962, ACTA GENET STAT MED, V12, P242

[8] ERIKSSON A W, 1973, Commentationes Biologicae Societas Scientiarum Fennica, V64, P1

[9] ERIKSSON AW, 1964, LANCET, V2, P1298

[10] ERIKSSON AW, 1973, AM J HUM GENET, V25, P141