1. Centre for Health Protection, Department of Health, The Government of the Hong Kong Special Administrative Region. Pneumococcal infection. Available from:http://www.chp.gov.hk/en/content/9/24/10584.html. Accessed January 8, 2019.
2. Centre for Health Protection, Department of Health, The Government of the Hong Kong Special Administrative Region. Updated recommendations on the use of pneumococcal vaccines for high-risk individuals. Available from: http://www.chp.gov.hk/files/pdf/updated_recommendations_on_the_use_of_pneumococcal_vaccines_amended_120116_clean_2.pdf. Accessed January 8, 2019.
3. Centre for Health Protection, Department of Health, The Government of the Hong Kong Special Administrative Region. Pneumonia. Available from: http://www.healthyhk.gov.hk/phisweb/en/healthy_facts/disease_burden/major_causes_death/pneumonia/. Accessed January 8, 2019.
4. The Government of the Hong Kong Special Administrative Region. LCQ11: Pneumococcal vaccination [press release]. Available from: https://www.info.gov.hk/gia/general/201605/25/P201605250508.htm. Accessed January 8, 2019.
5. Centre for Health Protection, Department of Health, The Government of the Hong Kong Special Administrative Region. Report on IPD in 2016. Available from: http://www.chp.gov.hk/en/epidemiology/441/636/753.html. Accessed February 1, 2019.