| A prospective study of sleep duration and mortality risk in women | Sleep | 2004 | 502 |
| Identifying women at-risk for postpartum depression in the immediate postpartum period | Acta Psychiatrica Scandinavica | 2004 | 188 |
| Self-reported Morisky score for identifying nonadherence with cardiovascular medications | Annals of Pharmacotherapy | 2004 | 156 |
| Canadian Trial of Physiological Pacing: Effects of physiological pacing during long-term follow-up | Circulation | 2004 | 145 |
| Doubling the dose of budesonide versus maintenance treatment in asthma exacerbations | Thorax | 2004 | 137 |
| Displacement of Canada's largest public illicit drug market in response to a police crackdown | Cmaj | 2004 | 126 |
| An outbreak due to peanuts in their shell caused by Salmonella enterica serotypes Stanley and Newport--sharing molecular information to solve international outbreaks | Epidemiology and Infection | 2004 | 118 |
| Increased burden of illness associated with antimicrobial-resistant Salmonella enterica serotype typhimurium infections | Journal of Infectious Diseases | 2004 | 112 |
| Health care priority setting: principles, practice and challenges | Cost Effectiveness and Resource Allocation | 2004 | 110 |
| Predictors of back pain in a general population cohort | Spine | 2004 | 107 |
| A comparison of four indirect methods of assessing utility values in rheumatoid arthritis | Medical Care | 2004 | 103 |
| HIV-positive injection drug users who leave the hospital against medical advice: the mitigating role of methadone and social support | Journal of Acquired Immune Deficiency Syndromes (1999) | 2004 | 98 |
| Bayesian spatial and ecological models for small-area accident and injury analysis | Accident Analysis and Prevention | 2004 | 94 |
| Socio-cultural influences on young people's sexual development | Social Science and Medicine | 2004 | 89 |
| Rationale for evaluating North America's first medically supervised safer-injecting facility | Lancet Infectious Diseases, The | 2004 | 83 |
| Initiating Highly Active Antiretroviral Therapy and Continuity of HIV Care: The Impact of Incarceration and Prison Release on Adherence and HIV Treatment Outcomes | Antiviral Therapy | 2004 | 81 |
| Directly observed therapy for the management of HIV-infected patients in a methadone program | Clinical Infectious Diseases | 2004 | 80 |
| Unprotected anal intercourse associated with recreational drug use among young men who have sex with men depends on partner type and intercourse role | Sexually Transmitted Diseases | 2004 | 77 |
| Efficacy of a smoking-cessation intervention for elective-surgical patients | Research in Nursing and Health | 2004 | 71 |
| A prospective study examining balance confidence among individuals with lower limb amputation | Disability and Rehabilitation | 2004 | 70 |
| The future face of coinfection: prevalence and incidence of HIV and hepatitis C virus coinfection among young injection drug users | Journal of Acquired Immune Deficiency Syndromes (1999) | 2004 | 63 |
| Per capita antibiotic consumption: how does a North American jurisdiction compare with Europe? | Clinical Infectious Diseases | 2004 | 58 |
| Endotracheal intubation and esophageal tracheal Combitube insertion by regular ambulance attendants: a comparative trial | Prehospital Emergency Care | 2004 | 52 |
| The impact of low family income on self-reported health outcomes in patients with rheumatoid arthritis within a publicly funded health-care environment | Rheumatology | 2004 | 48 |
| Evaluation and determinants of airborne bacterial concentrations in school classrooms | Journal of Occupational and Environmental Hygiene | 2004 | 47 |
