10:38 duration 10 minutes 38 seconds
Chpt 15-2
14:58 duration 14 minutes 58 seconds
Chpt 15-1
31:15 duration 31 minutes 15 seconds
Chpt 37-2
22:00 duration 22 minutes 0 seconds
Chpt 37-1
28:09 duration 28 minutes 9 seconds
Chpt 21
23:48 duration 23 minutes 48 seconds
Chpt 07
01:55 duration 1 minute 55 seconds
Dental Health intro