The dates and activity measurements given below have been obtained during 1962 and 1963, and have been made with CO 2 at 3 atm pressure in a proportional gas-counter very little modified from those described in previous contributions from this laboratory.
No takes yet. Share an insight, caveat, or question.
Godwin et al. (1964) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: