Determinants of patient recruitment in a multicenter clinical trials group: trends, seasonality and the effect of large studies

by Ioannidis John PA, Haidich Anna-Bettina
Published 2001-06-01

Reporting of conflicts of interest in guidelines of preventive and therapeutic interventions

by Giannakakis Ioannis A, Haidich Anna-Bettina, Contopoulos-Ioannidis Despina G, Baltogianni Maria S, Papanikolaou George N, Ioannidis John PA
Published 2001-06-01

Smoking among adolescents in Northern Greece: a large cross-sectional study about risk and preventive factors

by Spyratos Dionisios G, Pelagidou Despoina T, Chloros Diamantis, Haidich Anna-Bettina, Karetsi Eleni, Koubaniou Christina, Konstantopoulos Stavros, Gourgoulianis Konstantinos, Sichletidis Lazaros T
Published 2012-09-01