ECGs of structural heart disease: Part 1
Acute HIV infection in Singapore: predominance of men who have sex with men
Markers of genital tuberculosis in infertility
The efficacy and safety of intramuscular injections of methylcobalamin in patients with chronic nonspecific low back pain: a randomised controlled trial
A randomised controlled study comparing the effects of laryngeal mask airway and endotracheal tube on early postoperative pulmonary functions