Preparation of mechanically patterned hydrogels for controlling the self-condensation of cells oleh Takahisa Matsuzaki, Yuma Kawano, Momoka Horikiri, Yuko Shimokawa, Takashi Yamazaki, Nao Okuma, Hiroyuki Koike, Masaki Kimura, Ryuzo Kawamura, Yosuke Yoneyama, Yasuro Furuichi, Fumihiko Hakuno, Shin-Ichiro Takahashi, Seiichiro Nakabayashi, Satoshi Okamoto, Hiromitsu Nakauchi, Hideki Taniguchi, Takanori Takebe, Hiroshi Y. Yoshikawa