@article {van2011hepatitis,
	title = {The hepatitis C epidemic among HIV-positive MSM: incidence estimates from 1990 to 2007},
	journal = {Aids},
	volume = {25},
	number = {8},
	year = {2011},
	pages = {1083{\textendash}1091},
	publisher = {LWW},
	author = {van der Helm, Jannie J and Prins, Maria and Del Amo, Julia and Bucher, Heiner C and Chene, Genevieve and Dorrucci, Maria and Gill, John and Hamouda, Osamah and Sannes, Mette and Porter, Kholoud and others}
}
