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A joint international study on the epidemiology of hypospadias.
Källén B, Bertollini R, Castilla E, Czeizel A, Knudsen LB, Martinez-Frias ML, Mastroiacovo P, Mutchinick O. Källén B, et al. Among authors: knudsen lb. Acta Paediatr Scand Suppl. 1986;324:1-52. doi: 10.1111/j.1651-2227.1986.tb14935.x. Acta Paediatr Scand Suppl. 1986. PMID: 3471045
International study of sex ratio and twinning of neural tube defects.
Källén B, Cocchi G, Knudsen LB, Castilla EE, Robert E, Daltveit AK, Lancaster PL, Mastroiacovo P. Källén B, et al. Among authors: knudsen lb. Teratology. 1994 Nov;50(5):322-31. doi: 10.1002/tera.1420500503. Teratology. 1994. PMID: 7716740
Intestinal bypass operation and pregnancy outcome.
Knudsen LB, Källén B. Knudsen LB, et al. Acta Obstet Gynecol Scand. 1986;65(8):831-4. doi: 10.3109/00016348609157032. Acta Obstet Gynecol Scand. 1986. PMID: 3825522
178 results