In the case of Ghana, the physicians had left within 10 years of qualification, after working less than a third of the expected duration of their services.
For a third of the treatments described, the dose, duration or both individual sessions of the treatment were not clear and for around a quarter the schedule (interval, frequency, duration or timing) of the treatment was not clear.
"There's a whole swath that's within a tenth of a second of the longest duration," he said.
With "a combination of power and timing so focused and potent that it generated 8,000 pounds of force… and, in the space of one thousandth of a second – the duration of contact – through the miracle of physics it converted the sizzling zip of an incoming 90mph baseball into an outgoing spheroid launched cloudward at 110mph".
Muscle ache and headache lasted for a quarter and fever lasted for less than a tenth of the total common cold duration.
The 13th General Conference on Weights and Measures of 1967 defined a second as: "the duration of 9,192,631,770 cycles of microwave light absorbed or emitted by the hyperfine transition of caesium-133 atoms in their ground state undisturbed by external fields".
Scrutiny of the UK data suggest that to a first approximation, the duration of the main period of flushing can be predicted to endure around four times as long as the foregoing process of mine flooding.
A second is the duration of 9,192,631,770 periods of a phenomenon called microwave transition in an atom of caesium-133.
He explained: "If the time required for a tumor to double its diameter during a known period of time is taken as a measure of growth rate, one can calculate by extrapolation that two-thirds of the duration of a breast cancer remains undetectable by the patient or physician.
Importantly, it is an "unlinked" duration, meaning that the type (e.g. "eighth") of the duration does not say how long it lasts.
