clear
Search
Login
Sign Up
P. Vasudevan
's Polls
What did cardiologist Dr. Paul Zoll invent in Massachusetts in
What did cardiologist Dr. Paul Zoll invent in Massachusetts in 1952?
A. EKG
0 votes (0%)
A. EKG
B. Artificial heart valve
0 votes (0%)
B. Artificial heart valve
C. Artificial heart
0 votes (0%)
C. Artificial heart
D. Pacemaker
1 vote (100%)
D. Pacemaker
Show Results
|
Share
|
Report
|
1 vote
| 89 views
(200 symbols max)
Wolmal
(256 symbols max)
Share with LinkedIn
Share
