1999/370/EC: Administrative Commission of the European Communities on social security for migrant workers - Decision No 171 of 9 December 1998 amending Decision No 135 of 1 July 1987 concerning the granting of benefits in kind provided for in Article 17(7) and Article 60(6) of Council Regulation (EEC) No 574/72 and the concepts of urgency within the meaning of Article 20 of Regulation (EEC) No 1408/71 and of extreme urgency within the meaning of Article 17(7) and Article 60(6) of Regulation (EEC) No 574/72