2. http://www.uptodate.com/contents/hypertrophic-cardiomyopathy-beyond-the-basics
3. http://www.orthobullets.com/pediatrics/4023/tibial-tubercle-fracture
4. http://www.unm.edu/~lkravitz/Article%20folder/periodization.html
6. http://emedicine.medscape.com/article/84613-overview#a6
7. https://utswmed.org/medblog/high-altitude-training/
8. http://bjsm.bmj.com/content/34/4/246.abstract
9. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2902037/
10. http://www.cdc.gov/poxvirus/molluscum-contagiosum/treatment.html
11. http://www.aafp.org/afp/2004/1001/p1279.html
12. http://www.aafp.org/afp/2006/0415/p1391.html
13. http://emedicine.medscape.com/article/152696-treatment#d13
14. http://www.ncbi.nlm.nih.gov/pubmed/17143118
15. http://www.ncbi.nlm.nih.gov/pubmed/23107651
16. http://ajs.sagepub.com/content/33/7/1071
17. http://www.orthobullets.com/sports/3020/patellar-instability
18. http://www.ncbi.nlm.nih.gov/pubmed/18354139
19. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1768197/