Good surveys guide.
Evans, S J
Good surveys guide. [electronic resource] - BMJ (Clinical research ed.) Feb 1991 - 302-3 p. digital
Publication Type: Editorial
0959-8138
10.1136/bmj.302.6772.302 doi
Epidemiologic Methods
Humans
Random Allocation
Sampling Studies
Selection Bias
Good surveys guide. [electronic resource] - BMJ (Clinical research ed.) Feb 1991 - 302-3 p. digital
Publication Type: Editorial
0959-8138
10.1136/bmj.302.6772.302 doi
Epidemiologic Methods
Humans
Random Allocation
Sampling Studies
Selection Bias