1. Apple Daily, 2014. http://hk.apple.nextmedia.com/news/ art/20140827/18846011 (accessed October 15, 2014).
2. Oriental News, 2011. http://m.on.cc/nc/hknews/20111112/20111 112205315lc.html (accessed October 15, 2014).
3. Apple Daily, 2006. http://hk.apple.nextmedia.com/template/ apple/art_main.php?iss_id=20061202&sec_id=4104&art_id=6581414 (accessed October 15, 2014).
4. Foley P, Zuo Y, Plunkett A, Marks R. The frequency of common skin conditions in preschool-age children in Australia: atopic dermatitis. Arch Dermatol 2001;137:293–300.
5. Leung R, Wong G, Lau J, Ho A, Chan JK, Choy D, et al. Prevalence of asthma and allergy in Hong Kong schoolchildren: an ISAAC study. Eur Respir J 1997;10:354–360.