by DONEV, N, IONKOV, S
Published in Suvremenna meditsina (1960)

by MITOV, A, IVANOV, N, SAVOV, S, TEODOSIEV, L, KHRISTOV, G, IONKOV, S, ASSA, N, KAITAZOV, G, DRAGIEV, M, KRUSEVA, I U
Published in Izvestiia na Mikrobiologicheskiia institut (1952)

by Ionkov, S
Published in Folia medica (Plovdiv) (1967)

by IONKOV, S
Published in Khirurgiia (1957)

by GIUROV, M, IONKOV, S
Published in Suvremenna meditsina (1956)

by Ionkov, S, Karapanchev, B, Chakyrov, I
Published in Pediatrija (01.06.1975)

by Ionkov, S, Popova, A, Karaivanov, K, Vasilíeva, M, Dimova-Chapkynova, P
Published in Voprosy kurortologii, fizioterapii i lečebnoj fizičeskoj kulʹtury (01.07.1985)

by Batalov, Z, Giulev, D, Iovkova, T, Ionkov, S, Vasileva, M
Published in Vutreshni bolesti (1977)