The court instructed the jury that if on the first occasion defendant was consulted he advised the parents to take Brenda to a specialist and they did not follow the advice the verdict should be for defendant. .
The court was correct in not sustaining the grounds on which defendant refused to divulge the information sought. It was not privileged under Code section 622.10. Cross v. Equitable Life Assurance Society, 228 Iowa 800, 806, 293 N.W. 464, and citations; Kaplan v. Manhattan Life Ins. Co. of New York, 71 App. D. C. 250, 109 F.2d 463, 465; Willig v. Prudential Ins. Co. of America, 71 Ohio App. 255, 49 N.E.2d 421, 422, and citations; 58 Am. Jur., Witnesses, section 421; 97 C. J. S., Witnesses, section 295c, pages 835, 836.
Nor did the written or oral interrogatories require defendant to list the witnesses he expected to call at the trial. Hitchcock v. Ginsberg, 240 Iowa 678, 37 N.W.2d 302, and citations; Article by Prof. Allan D. Vestal, 43 Iowa Law Review 8, 31.
We think the court was in error in ruling the desired names were irrelevant. Rule 143 as amended in 1957 is basically rule 26(b), Federal Rules of Civil Procedure, with the added proviso “that a party shall not be required to list the witnesses he expects to call at the trial.” Article by Professor Vestal, supra, at page 34.
In Iowa and elsewhere provisions for discovery are interpreted broadly and liberally to effect their purpose. Hardenbergh v. Both, 247 Iowa 153, 160, 161, 73 N.W.2d 103, 107, 108, and citations; 17 Am. Jur., Discovery and Inspection (1957), section 6; Annotation 8 A. L. R.2d 1134, 1136, 1137.
27 C. J. S., Discovery (1959), section 20, page 46, states: “The modern policy is that the utmost liberality should prevail in the matter of discovery, the trend being to broaden the scope of discovery so as to give litigants access to all material facts .” To like effect are Id., section 21; Hitchcock v. Ginsberg, supra, 240 Iowa 678, 679, 37 N.W.2d 302, 303; Nehring v. Smith, 243 Iowa 225, 228, 49 N.W.2d 831, 833; Hardenbergh v. Both, supra.