Focus Issue on Male Infertility by Hideyuki Kobayashi, Koichi Nagao, Koichi Nakajima

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Randomized crossover trial of amoxapine versus vitamin B12 for retrograde ejaculation by Jianlin Hu, Koichi Nagao, Toshihiro Tai, Hideyuki Kobayashi, Koichi Nakajima

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ABO Blood Type and Risk of Peyronie’s Disease in Japanese Males by Yozo Mitsui, Hideyuki Kobayashi, Fumito Yamabe, Koichi Nakajima, Koichi Nagao

Ultrasound‐guided laparotomic oocyte retrieval during surgery for fertility preservation in a case of tumor recurrence after a unilateral salpingo‐oophorectomy by Ayumu Ito, Yukiko Katagiri, Yusuke Fukuda, Tsuyoki Kugimiya, Koichi Nagao, Mineto Morita

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A new model for determining risk of male infertility from serum hormone levels, without semen analysis by Hideyuki Kobayashi, Masato Uetani, Fumito Yamabe, Yozo Mitsui, Koichi Nakajima, Koichi Nagao

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A method for utilizing automated machine learning for histopathological classification of testis based on Johnsen scores by Yurika Ito, Mami Unagami, Fumito Yamabe, Yozo Mitsui, Koichi Nakajima, Koichi Nagao, Hideyuki Kobayashi

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Giant Penile Lymphedema Caused by Chronic Penile Strangulation with Rubber Band: A Case Report and Review of the Literature by Shunsuke Hori, Yozo Mitsui, Hidenori Iwai, Toshihiro Tai, Hideyuki Kobayashi, Koichi Nakajima, Koichi Nagao

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Colon Cancer Metastasis to the Right Testis: Case Report and Review of Literature by Mizuki Kasahara, Tomo Shimizu, Hiroshi Aoki, Mizuho Okawa, Fumito Yamabe, Hideyuki Kobayashi, Koichi Nagao, Koichi Nakajima, Yozo Mitsui

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Longitudinal change in castration-resistant prostate cancer biomarker AST/ALT ratio reflects tumor progression by Yozo Mitsui, Fumito Yamabe, Shunsuke Hori, Masato Uetani, Hiroshi Aoki, Kei Sakurabayashi, Mizuho Okawa, Hideyuki Kobayashi, Koichi Nagao, Koichi Nakajima

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Endometrial congestion is the only hysteroscopic finding indicative of chronic endometritis. by Mayuko Furui, Ayumu Ito, Yusuke Fukuda, Mami Sekiguchi, Kentaro Nakaoka, Yuko Hayashi, Yuko Tamaki, Yukiko Katagiri, Koichi Nagao, Masahiko Nakata

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Combination of C-reactive protein/albumin ratio and time to castration resistance enhances prediction of prognosis for patients with metastatic castration-resistant prostate cancer by Yozo Mitsui, Fumito Yamabe, Shunsuke Hori, Masato Uetani, Hiroshi Aoki, Kei Sakurabayashi, Mizuho Okawa, Hideyuki Kobayashi, Koichi Nagao, Koichi Nakajima

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Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan by Akira Tsujimura, Shinichiro Fukuhara, Koji Chiba, Tsuyoshi Yoshizawa, Hikaru Tomoe, Masato Shirai, Kazunori Kimura, Eiji Kikuchi, Eri Maeda, Yoshikazu Sato, Atsushi Nagai, Koichi Nagao, Haruaki Sasaki

A Novel CC-Chemokine Receptor 3 Antagonist, Ki19003, Inhibits Airway Eosinophilia and Subepithelial/Peribronchial Fibrosis Induced by Repeated Antigen Challenge in Mice by Masato Komai, Hiroyuki Tanaka, Koichi Nagao, Masayuki Ishizaki, Daisuke Kajiwara, Toru Miura, Hiroshi Ohashi, Tomoko Haba, Kazuki Kawakami, Eiji Sawa, Osamu Yoshie, Naoki Inagaki, Hiroichi Nagai

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Long‐term clinical outcomes of testicular sperm extraction and intracytoplasmic sperm injection for infertile men by Noriyuki Okuyama, Ryuichiro Obata, Nao Oka, Yusuke Nakamura, Hiromitsu Hattori, Yukiko Nakajo, Nobuya Aono, Masae Koizumi, Mayumi Toya, Koichi Nagao, Toshihiro Tai, Tomoko Hashimoto, Hideki Igarashi, Koichi Kyono

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Effectiveness of NO-cGMP axis for lower urinary tract syndrome by Yukihide Matsui, Yurika Ito, Tomo Shimizu, Yota Nakajima, Toshihiro Shimizu, Mizuki Kasahara, Koji Tamura, Toshihiro Tai, Masato Nagata, Humito Yamabe, Kuri Aoki, Hideyuki Kobayashi, Koichi Nagao, Koichi Nakajima

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COVID Pandemic Impact on Healthcare Provision and Patient Psychosocial Distress: A Multi-National Cross-Sectional Survey among Asia-Pacific Countries by Eric Chung, Bang-Ping Jiann, Koichi Nagao, Lukman Hakim, William Huang, Joe Lee, Haocheng Lin, Dung Ba Tien Mai, Quang Nguyen, Hyun Jun Park, Yoshikazu Sato, Kavirach Tantiwongse, Yiming Yuan, Kwangsung Park

Swim‐up method is superior to density gradient centrifugation for preserving sperm DNA integrity during sperm processing by Kenji Amano, Satoko Oigawa, Koichiro Ichizawa, Yukiko Tokuda, Mami Unagami, Mami Sekiguchi, Mayuko Furui, Kentaro Nakaoka, Ayumu Ito, Rika Hayashi, Yuko Tamaki, Yuko Hayashi, Yusuke Fukuda, Yukiko Katagiri, Masahiko Nakata, Koichi Nagao

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Correction: Effect of blastocyst shrinkage on assisted reproductive outcomes: a retrospective cohort study describing a new morphological evaluation of blastocyst pre-vitrification... by Ayumu Ito, Yukiko Katagiri, Satoko Oigawa, Kenji Amano, Koichiro Ichizawa, Yukiko Tokuda, Mami Unagami, Masato Yoneyama, Takahiro Tsuchiya, Mami Sekiguchi, Mayuko Furui, Kentaro Nakaoka, Nahomi Umemura, Yuko Hayashi, Yuko Tamaki, Koichi Nagao, Masahiko Nakata

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Effect of blastocyst shrinkage on assisted reproductive outcomes: a retrospective cohort study describing a new morphological evaluation of blastocyst pre-vitrification and post-wa... by Ayumu Ito, Yukiko Katagiri, Satoko Oigawa, Kenji Amano, Koichiro Ichizawa, Yukiko Tokuda, Mami Unagami, Masato Yoneyama, Takahiro Tsuchiya, Mami Sekiguchi, Mayuko Furui, Kentaro Nakaoka, Nahomi Umemura, Yuko Hayashi, Yuko Tamaki, Koichi Nagao, Masahiko Nakata

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Sexual Problems among Japanese Women: Data from an Online Helpline by Yumi Ozaki, MD, PhD, Koichi Nagao, MD, PhD, Rieko Saigo, LLB, Toshihiro Tai, MD, PhD, Norie Tanaka, MD, Hideyuki Kobayashi, MD, PhD, Koichi Nakajima, MD, PhD, Yoshimitsu Takahashi, DrPH

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