Respiratory viral infection (RSV) and low vitamin D - many studies | VitaminDWiki
Vitamin D deficiency symptoms: Signs to add more foods to diet include sweating | Express.co.uk
Sore throat: Causes, symptoms, and when to see a doctor
When and why you should take Vitamin D, as man dies from overdose
Vitamin D deficiency symptoms: 9 key signs you need more 'sunshine vitamin' in your diet - Mirror Online
Vitamin D supplements no help for colds, flu | CNN
Should I take vitamin D every day? | Health & wellbeing | The Guardian
Should I take vitamin D every day? | Health & wellbeing | The Guardian
5 Ways to Keep Your Heart Healthy
10 Best Sore Throat Remedies, Backed By Experts – Forbes Health
Zinc Lozenges With Echinacea, Vitamins C And D – Wild Cherry | Ultra Pharm Marketing Limited
PDF) Impact of Interleukin-37 and Vitamin D on children with Streptococcus pyogenes sore throat in Salah al-Din Governorate, Iraq
What to Eat and Drink for a Sore Throat
Sore throat: Diet and home remedies
13 Foods To Eat When You Have A Sore Throat, According To Doctors
Sore throats | Home Health UK
The best (and worst) foods for a sore throat
4 Ways to Get Rid of a Sore Throat - wikiHow
Vitamin D vector stock vector. Illustration of food - 143784519
Vitamin D | Linus Pauling Institute | Oregon State University
How vitamins C and D help with colds
Israeli study offers strongest proof yet of vitamin D's power to fight COVID | The Times of Israel
Vitamin D supplements 'the key to beating colds and flu', study finds | The Independent | The Independent
How long do supplements treat a sore throat due to vitamin D deficiency? - Quora
PDF) The Association between Vitamin D Deficiency and Chronic Tonsillitis in Children: an Evidence Based Case Report
Vitamin D reduces fatigue in patients with advanced cancer, say researchers
