by Challis, K., Osman, N. B., Cotiro, M., Nordahl, G., Dgedge, M., Bergström, S.
Published in Tropical medicine & international health (01.10.2004)

by Osman, N Bique, Challis, K, Folgosa, E, Cotiro, M, Bergström, S
Published in Sexually transmitted infections (01.06.2000)

by Osman, N B, Challis, K, Cotiro, M, Nordahl, G, Bergström, S
Published in Journal of tropical pediatrics (1980) (01.02.2001)

by Osman, Nafissa Bique, Challis, Kenneth, Cotiro, Manuel, Nordahl, Gunnar, Bergstrøm, Staffan
Published in African journal of reproductive health (01.04.2000)

by Pereira, C, Bugalho, A, Bergström, S, Vaz, F, Cotiro, M
Published in British journal of obstetrics and gynaecology (01.06.1996)

by Osman, N.B., Challis, K., Folgosa, E., Cotiro, M., Bergström, S.
Published in International journal of gynecology and obstetrics (2000)

by van Roosmalenl, J., Mbaruku, G., Cotiro, M., Hoestermann, C., Verkuyl, D.A.A., Meguid, T.
Published in International journal of gynecology and obstetrics (2000)