Decision No 109 of 18 November 1977 amending Decision No 92 of 22 November 1973 concerning the concept of sickness and maternity insurance benefits in kind referred to in Article 19 (1) and (2), 22, 25 (1), (3) and (4), 26, 28 (1) and 28a, 29 and 31 of Council Regulation (EEC) No 1408/71 and the determination of the amounts to be refunded under Articles 93, 94 and 95 of Council Regulation (EEC) No 574/72, as well as the advances to be paid in pursuance of Article 102 (4) of the same Regulation