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Acta Geneticae Medicae Et Gemellologiae|January 1, 1991
Ethnicity and sex ratio in twin birthsR Picard, D Fraser, E PicardActa Geneticae Medicae Et Gemellologiae|January 1, 1991
Factors associated with neonatal problems in twin gestationsD Fraser, R Picard, E PicardThe Journal of Reproductive Medicine|July 1, 1994
Birth weight discordance, intrauterine growth retardation and perinatal outcomes in twinsD Fraser, R Picard, E Picard, et al.The Journal of Reproductive Medicine|February 1, 1990
Twinning in southern Israel. Seasonal variation and effects of ethnicity, maternal age and parityR Picard, D Fraser, Z J Hagay, et al.European Journal of Obstetrics, Gynecology, and Reproductive Biology|November 1, 1989
Twinning in southern Israel; secular trends, ethnic variation and effects of maternal age and parityR Picard, D Fraser, Z J Hagay, et al.Journal of Animal Science|March 27, 2001
The "new perception" of animal agriculture: legless cows, featherless chickens, and a need for genuine analysisD FraserIsrael Journal of Medical Sciences|May 1, 1994
Epidemiology of Giardia lamblia and Cryptosporidium infections in childhoodD FraserPageof 231