TY  - GEN
AU  - Pries,Joachim
TI  - Correspondence (letter to the editor): Serious concerns
SN  - 1866-0452
PY  - 2012///0417
KW  - Contraceptives, Oral, Combined
KW  - administration & dosage
KW  - Contraceptives, Oral, Hormonal
KW  - Female
KW  - Humans
KW  - Pregnancy
N1  - Publication Type: Letter; Comment
UR  - https://doi.org/10.3238/arztebl.2011.0769a
ER  -