Kelly, Jeffrey A; Amirkhanian, Yuri A; Kabakchieva, Elena; Vassileva, Sylvia; McAuliffe, Timothy L; DiFranceisco, Wayne J; Varleva, Tonka

Sperle, Ida; Nielsen, Stine; Gassowski, Martyna; Naneva, Zlatina; Perchemlieva, Tanya; Amato-Gauci, Andrew; An der Heiden, Matthias; Bremer, Viviane; Golkocheva-Markova, Elitsa; Hristov, Kristiyan; Kaneva, Elena; Simeonova, Yanita; Tenev, Tencho; Varleva, Tonka; Duffell, Erika; Zimmermann, Ruth

Billings, Erik; Heipertz, Richard A; Varleva, Tonka; Sanders-Buell, Eric; O'Sullivan, Anne Marie; Bose, Meera; Howell, Shana; Kijak, Gustavo H; Taskov, Hristo; Elenkov, Ivailo; Nenova, Marina; Popivanova, Nedialka; Valenzuela, Aimee Bolen; Myles, Otha; Bautista, Christian T; Robb, Merlin L; Michael, Nelson L; Kim, Jerome H; Scott, Paul T; Tovanabutra, Sodsai; Ake, Julie A

Doan, T N; Varleva, T; Zamfirova, M; Tyufekchieva, M; Keshelava, A; Hristov, K; Yaneva, A; Gadzheva, B; Zhang, S; Irbe, S; Ragonnet, R; McBryde, E S; Trauer, J M

Ivailo Alexiev, Anupama Shankar, Reneta Dimitrova, Anna Gancheva, Asia Kostadinova, Pavel Teoharov, Elitsa Golkocheva, Maria Nikolova, Mariya Muhtarova, Ivaylo Elenkov, Mariyana Stoycheva, Daniela Nikolova, Tonka Varleva, William M Switzer

Ivailo Alexiev Ivanov, Danail Beshkov, Anupama Shankar, Debra L Hanson, Dimitrios Paraskevis, Viara Georgieva, Lyudmila Karamacheva, Hristo Taskov, Tonka Varleva, Ivaylo Elenkov, Mariana Stoicheva, Daniela Nikolova, William M Switzer

Salemi, Marco; Goodenow, Maureen M; Montieri, Stefania; de Oliveira, Tulio; Santoro, Maria Mercedes; Beshkov, Danail; Alexiev, Ivailo; Elenkov, Ivailo; Elenkov, Ivan; Yakimova, Tsvetana; Varleva, Tonka; Rezza, Giovanni; Ciccozzi, Massimo