[1] Univ Natl Specialised Hosp Act Treatment Haematol, BMT Unit, Sofia, Bulgaria
[2] Univ Natl Specialised Hosp Act Treatment Haematol, BM & PBSC Apheresis Dept, Sofia, Bulgaria
[3] Univ Natl Specialised Hosp Act Treatment Haematol, Lab Cytogenet & Mol Biol, Sofia, Bulgaria
[4] Univ Natl Specialised Hosp Act Treatment Haematol, Virol & Microbiol, Sofia, Bulgaria
[5] Univ Natl Specialised Hosp Act Treatment Haematol, Lab Hemopathol & Immunol, Sofia, Bulgaria
[6] Univ Natl Specialised Hosp Act Treatment Haematol, Sofia, Bulgaria