RT Book
T1 Oral contraceptives: technical and safety aspects
T2 WHO offset publication
JF WHO offset publication
LA English
PP Geneva
PB World Health Organization
YR 1982
UL https://krimdok.uni-tuebingen.de/Record/1611934125
NO Bibliography: p. 42-43
CN RG137.5.O75 1982
SN 9241700645
K1 Oral contraceptives : Side effects
K1 Oral contraceptives : Safety measures