1. Hong Kong College of Physicians & Central Renal Committee (Hospital Authority).Quality Initiative Recommendation in the Provision of Renal Services. Available from URL:http://www.hkcp.org/docs/TrainingGuidelines/renal_services.pdf(Assessed Feb 12 2018).
2. Water Supplies Department the Government of the Hong Kong Special Administrative Region.Water Treatment Process. Available from URL:https://www.wsd.gov.hk/en/core-businesses/operation-and-maintenance-of-waterworks/water-treatment/index.html(Assessed Feb 12 2018).
3. Water Supplies Department the Government of the Hong Kong Special Administrative Region. Drinking Water Quality for the Period of October 2016–September 2017. Available from URL:https://www.wsd.gov.hk/filemanager/en/content_1182/Drinking_Water_Quality-e.pdf(Accessed Feb 12 2018).
4. Centre for Food Safety Food and Environmental Hygiene Department The Government of the Hong Kong Special Administrative Region.Nitrate and Nitrite in Vegetables Available in Hong Kong. Available from URL:http://www.cfs.gov.hk/english/programme/programme_rafs/files/Nitrate_and_Nitrite_Vegetables_Available_HK_e.pdf(Assessed Feb 12 2018).
5. Drinking Water Quality in Hong Kong. Available from URL:https://www.gov.hk/en/residents/environment/water/drinkingwater.htm(Assessed Feb 12 2018).