Phi stands for protected health information. The hipaa privacy rule provides federal protections for personal health information held by covered entities and gives patients. 为了避免 phi 的大写与符号弄混，当时在作业和试卷里，我会在大写的竖画两端刻意加上衬线。 希腊字母在国家标准 gb2312 里也有相应的编码值，如图中所示。
Phi Kappa Psi Fraternity Fraternity & Sorority Affairs UIUC
