He therefore collaborated with two anti-abortion physicians and a statistician to publish a 1996 article in the Journal of Epidemiology and Community Health, arguing that induced abortion was a risk factor for breast cancer.
于是在1996年，他与两名同样反堕胎的医生和一位统计学家在《流行病学和社区卫生杂志》（Journal of Epidemiology and Community Health）发表了一篇文章，结论是人工流产是乳腺癌的一个危险因素。