Comment on: Risk factors of breast cancer in women in Kelantan, Malaysia
Authors' reply: Risk factors of breast cancer in women in Kelantan, Malaysia
Antecedant risk factors and their control in young patients with a first myocardial infarction
Authors' reply: Antecedent risk factors and their control in young patients with a first myocardial infarction
Stroke-associated pneumonia: the need for stricter case definitions