List out the series code and country code of the poor countries that located in Latin American & Carribbean.
Latin American & Carribbean is the name of the region; poor countries refers to IncomeGroup = 'Low income';
SELECT T2.SeriesCode, T2.CountryCode FROM Country AS T1 INNER JOIN CountryNotes AS T2 ON T1.CountryCode = T2.Countrycode WHERE T1.Region = 'Latin America & Caribbean' AND t1.incomegroup = 'Low income'