[1] Univ Gadjah Mada, Fac Med, Sch Nursing, Yogyakarta, Indonesia
[2] Radboud Univ Nijmegen, Med Ctr, Dept Primary & Community Care, Gender & Womens Hlth, NL-6500 HB Nijmegen, Netherlands
[3] Royal Dutch Org Midwives KNOV, Nijmegen, Netherlands
[4] Prov Hlth Off Yogyakarta Special Prov, Yogyakarta, Indonesia
[5] Radboud Univ Nijmegen, Med Ctr, Dept Obstet & Gynaecol, NL-6525 ED Nijmegen, Netherlands