"Oral/*adverse effects/chemistry"

Oral contraceptive switching patterns in the United Kingdom: an important potential confounding variable in studies of venous thromboembolism.
OBJECTIVE: To investigate whether patients changing from their current oral contraceptive (OC) are preferentially switched to …
R. D. Farmer, R. A. Lawrenson, I. R. Hambleton
Cite
Oral contraceptive switching patterns in the United Kingdom: an important potential confounding variable in studies of venous thromboembolism.
OBJECTIVE: To investigate whether patients changing from their current oral contraceptive (OC) are preferentially switched to …
R. D. Farmer, R. A. Lawrenson, I. R. Hambleton
Cite
Oral contraceptive switching patterns in the United Kingdom: an important potential confounding variable in studies of venous thromboembolism.
OBJECTIVE: To investigate whether patients changing from their current oral contraceptive (OC) are preferentially switched to …
R. D. Farmer, R. A. Lawrenson, I. R. Hambleton
Cite