[1]
Brambilla, C.M.B. de B., Correa-Costa, S.A., Costa, E.M. da and Giuliani, L.R. 1997. Frequency of twin births in Santa Maria-Frequency of twin births at the University Hospital in the period of 1985-1995. Ciência e Natura. 19, 19 (Dec. 1997), 53–62. DOI:https://doi.org/10.5902/2179460X26752.