TY - GEN AU - Engel,M E AU - Datta,P K AU - Moses,H L TI - Signal transduction by transforming growth factor-beta: a cooperative paradigm with extensive negative regulation SN - 0733-1959 PY - 1999///0407 KW - Animals KW - Down-Regulation KW - physiology KW - Humans KW - Receptors, Transforming Growth Factor beta KW - Signal Transduction KW - Transforming Growth Factor beta N1 - Publication Type: Journal Article; Review ER -