Granulosa cells-derived insulin-like growth factor (IGF) binding proteins are inhibitory to IGF-I hormonal action. Evidence derived from the use of a truncated IGF-I analogue. - Adashi,E.Y.; Resnick,C.E.; Ricciarelli,E.; Hurwitz,A.; Kokia,E.; Tedeschi,C, et al. (J Clin Invest, 1992)