1 23 International Journal of Behavioral Medicine Official Journal of the International Society of Behavioral Medicine ISSN 1070-5503 Volume 21 Number 1 Int.J. Behav. Med. (2014) 21:29-36 DOI 10.1007/s12529-013-9343-9 Managing Uncertainty: Healthcare Professionals' Meanings Regarding the HPV Vaccine Irina Todorova, Anna Alexandrova- Karamanova, Yulia Panayotova, Elitsa Dimitrova & Tatyana Kotzeva