3

System to obtain exercise respiratory flow waveforms

Year:
1994
Language:
english
File:
PDF, 379 KB
english, 1994
7

Respirator Performance Ratings for Speech Intelligibility

Year:
1998
Language:
english
File:
PDF, 344 KB
english, 1998
11

Generating the Snellen chart by computer

Year:
1998
Language:
english
File:
PDF, 118 KB
english, 1998