Abstract

Get full access to this article
View all access options for this article.
References
1.
Rosing
J
Middeldorp
S
Curvers
J
Thomassen
MCL
Nicolaes
GAF
Meijers
JCM
Low-dose oral contraceptives and acquired resistance to activated protein C: A randomised cross-over study . Lancet
1999 ;354 :2036 –40 .
2.
Spannagl
M
Dick
A
Assmann
A
Heinemann
L
Schramm
W
. Resistance to activated protein C in women using oral contraceptives . Semin Thromb Hemost
1998 ;24 :423 –30 .
3.
Brigden
ML
. The hypercoagulable state: Who, how, and when to test and treat . Postgrad Med
1997 ;101 :249 –52 ,254 –6 ,259 –62 .
4.
Naranjo
CA
Busto
U
Sellers
EM
Sandor
P
Ruiz
I
Roberts
EA
A method for estimating the probability of adverse drug reactions . Clin Pharmacol Ther
1981 ;30 :239 –45 .
