@inproceedings{xu:petra2013a,
	author = {Wenyao Xu and Ming-Chun Huang and Jason J. Liu and Fengbo Ren and Xinchen Shen and Xiao Liu and Majid Sarrafzadeh},
	title = {Microphone-based Spirometer for COPD diagnosis and Exergame Design},
	booktitle = {International Conference on Pervasive Technologies Related to Assistive Environments  (PETRA'13)},
	pages = {45 - 52},
	address = {Rhodes Island, Greece},
	month = {May},
	year = {2013}
}