Cita APA

Wang, X., Tan, T., Shek, L., Chng, S., Hia, C., Ong, N., . . . Goh, D. (2004). The prevalence of asthma and allergies in Singapore; data from two ISAAC surveys seven years apart.

Chicago Style Citation

Wang, X., T. Tan, L. Shek, S. Chng, C. Hia, N. Ong, S. Ma, B. Lee, i D. Goh. The Prevalence of Asthma and Allergies in Singapore; Data From Two ISAAC Surveys Seven Years Apart. 2004.

Cita MLA

Wang, X., et al. The Prevalence of Asthma and Allergies in Singapore; Data From Two ISAAC Surveys Seven Years Apart. 2004.