Luo, Yan Lurie, Iosif W. Lushchaeva, Yelena Luterek, Katarzyna Luterek, Katarzyna, 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, Poland (Poland) Luterek, Katarzyna Luz, Minica Regina Lourenco Lv, Aiming Lv, Guorong lv, Qiubo Lv, Shaofang Lv, Yongqing Ma, Dongmei Ma, Hainong Ma, He Ma, Hua-Gang Ma, Qi Ma, Xiaoling Ma, Yan Mabiala, Ewelina Mach, Paweł Machliński, Bogusław Machura, Mariola, School of Health Sciences in Katowice, Medical University of Silesia, Katowice, Chair of Woman's Health, Department of Nursing in Gynecology and Obstetrics, Katowice, Poland Machura, Mariola Maciej, Zabel