@article{Kaku1975,
author = {Kaku, K.},
title= {Increased induced abortion rate in 1966, an aspect of a Japanese folk superstition},
year = {1975},
doi = {10.1080/03014467500000651},
journal = {Annals of Human Biology},
volume = {2},
number = {2},
pages = {111--115},
}