Cita APA

Hayes, S. (1999). Rationing of sildenafil: Nobody needs an erection at public expense. BMJ Group.

Chicago Style Citation

Hayes, Stephen. Rationing of Sildenafil: Nobody Needs an Erection At Public Expense. BMJ Group, 1999.

Cita MLA

Hayes, Stephen. Rationing of Sildenafil: Nobody Needs an Erection At Public Expense. BMJ Group, 1999.

Atenció: Aquestes cites poden no estar 100% correctes.