Source:
Science (New York, N.Y.) [Science] 1970 Nov 20; Vol. 170 (3960), pp. 834-5.Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print Cited Medium:
Source:
Science (New York, N.Y.) [Science] 1971 Jul 16; Vol. 173 (3993), pp. 214-6.Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print Cited Medium:
Source:
The American journal of nursing [Am J Nurs] 1971 Aug; Vol. 71 (8), pp. 1542-7.Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 0372646 Publication Model: Print Cited Medium: Print ISSN: