What country in the region of Sub-Saharan Africa has a series code of "SP.DYN.AMRT.FE"? Indicate the long name of the country
SELECT DISTINCT T3.LongName FROM SeriesNotes AS T1 INNER JOIN CountryNotes AS T2 ON T1.SeriesCode = T2.Seriescode INNER JOIN Country AS T3 ON T2.Countrycode = T3.CountryCode WHERE T3.Region = 'Sub-Saharan Africa' AND T1.SeriesCode = 'SP.DYN.AMRT.FE'