Crystal ball - 2009. [No authors listed] Environ Microbiol Rep. 2009 Feb;1(1):3-26. doi: 10.1111/j.1758-2229.2008.00010.x. PMID: 23765716
The foggy crystal ball of mineral physics. Kerr RA. Science. 1991 Nov 29;254(5036):1295-6. doi: 10.1126/science.254.5036.1295. PMID: 17773592
The nurse as political activist: influencing nursing practice in the political arena. Biggs B. RN Ida. 1987 Nov-Dec;10(6):6-7 cont. PMID: 3423630
Spies to use Twitter as crystal ball. Weinberger S. Nature. 2011 Oct 17;478(7369):301. doi: 10.1038/478301a. PMID: 22012368
Lawmakers lack a crystal ball. S D. Science. 1972 Mar 03;175(4025):972. doi: 10.1126/science.175.4025.972. PMID: 17791930
Nurses target political, social issues for future action. Hohman J. Hospitals. 1977 Jul 01;51(13):83-4, 86. PMID: 873467