High percentage of recent HIV infection leading to onward transmission in Odessa, Ukraine associated with young adults - Simmons, Ruth; Semenenko, Igor; Tolpina, Maria; Tereschenko, Rostislav; Kotlik, Ludmila; Zasyptka, Lyubov; Murphy, Gary; McKinney, Elaine; Copas, Andrew; Malyuta, Ruslan; others (AIDS and Behavior, 2014)