Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 526
The first user who solved this task is On On Lunarbasil.
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TB laboratoryIn 1893, the first tuberculosis diagnostic community laboratory in the U.S. was authorized in New York City and opened by the New York City Dept. of Health under the direction of Dr. Hermann Michael Biggs. The laboratory administered sputum examinations, reporting and registrations (compulsory by institutions and voluntary by physicians), official supervision of isolation, terminal disinfection, provision of hospital facilities, and public education. The first research laboratory in the U.S. was established the following year, in 1894, by Dr. Edward Livingston Trudeau in a room in his home at Saranac Lake, N.Y. |