004420000a2200133000450024501130000065000130011365000250012665000150015165100270016604100130019370000210020610000250022777300560025210aEffect of maternal mass on litter size and offspring survival in the hispid cotton rat (<Sigmodon hispidus>)14aRoedores14aCiclos reproductivos14aEcología 4dKansaspEstados Unidos0 aInglés1 aSlade, Norman A.1 aCampbell, Michael T.1 tCanadian Journal of Zoology3188h73q133-140d1995