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For sums of money, use the appropriate symbol to indicate the type of currency (eg, $, €, £; see also , Units of Measure, Conventional Units and SI Units in JAMA and the Archives Journals, Currency).His charge for the medication was $55.60 plus $0.95 for shipping. The equivalent sum in euros was €30. Less

Use the degree symbol with Celsius or Fahrenheit measures of temperature. The degree symbol should be closed up (see , Units of Measure, Format, Style, and Punctuation, Spacing).The plates were cultured at 17°C, 3°C lower than usual. Less

Measures of time usually are expressed as numerals (see also , Abbreviations, Days of the Week, Months, Eras). When dates are provided, numerals should be used for day and year; the month should be spelled out unless listed in a table. Conventional form for time and dates (11:30 pm on February 25, 1961) is preferred to European or military form (2330 on 25 February 1961). However, use of military time may clarify the time course in figures that depict a 24-hour experiment, times of drug dosing, and the like. For time, if the hour of the day is given, am Less

For less precise measurements, mixed fractions may be used instead of decimals. These expressions usually involve time. Common fractions are typically spelled out (see , Spelling Out Numbers, Common Fractions).The surgery lasted 3¼ hours. The patient was hospitalized for 5½ days. Of the patients returning for a second visit, half received the intervention. Less

Commas are not used in large numbers. In 4-digit numbers, the digits are set closed up. For numbers of 10 000 or greater, a half-space or thin space is used to separate every 3 digits starting from the right-most integer (or, in numbers with decimals, from the left of the decimal point). For numbers with 5 or more digits to the right of the decimal point, a half-space is used between every 3 digits starting from the right of the decimal point (see also , Units of Measure, Use of Numerals With Units).The exact weight of the salt was 8.453 98 g, Less

In scientific writing, numerals are used to express numbers in most circumstances. Exceptions are the following: ▪ Numbers that begin a sentence, title, subtitle, or heading ▪ Common fractions ▪ Accepted usage such as idiomatic expressions and numbers used as pronouns ▪ Other uses of “one” in running text ▪ Ordinals first through ninth ▪ Numbers spelled out in quotes or published titles. (See , Spelling Out Numbers.) Note the following examples of numerals in text: The relative risk of exposed individuals was nearly 3 times that of the controls. In the second phase of the study, 3 of the Less