AMA (11th ed.) Style Guide

For more information see AMA Manual of Style section 3.7 References. Authors. 

In the citation, put the surname first, followed by first initial and (if given) additional initials.

• End with a period.
• No blank space between initials.

For example:

Cooper T.
Berben SAA.

Full citation example:

Espinosa N. Ankle arthrodesis in crippled cases. Foot Ankle Clin. 2022;27(4):867-881. doi:10.1016/j.fcl.2022.07.004

For more information see AMA Manual of Style section 3.7 References. Authors. 

Put the surname first, followed by first initial and (if given) additional initials.

• Separate multiple authors with a comma.
• End with a period.
• No blank space between initials.

For example:

Oren E, Kiene SM.

Crowder L, Welniak TL, Hoogland AI, Small BJ, Rodriguez Y, Carpenter KM.

Citation example:

Xie YH, Chongsuvivatwong V, Tan Y, Tang ZZ, Sornsrivichai V, McNeil EB. Important roles of public playgrounds in the transmission of hand, foot, and mouth disease. Epidemiol Infect. 2015;143(7):1432-1441. doi:10.1017/S0950268814002301

For more information see AMA Manual of Style section 3.7 References. Authors. 

Put the surname first, followed by first initial and (if given) additional initials.

• Separate multiple authors with a comma.
• No blank space between initials.
• List only the first three authors. Add a comma and the phrase "et al" after the third author, followed by a period.

For example:

Mohammed WS, Al-Makramani BMA, Mehta V, et al.

Citation example:

Mannucci C, Attard E, Calapai F, et al. Coffee intake during pregnancy and neonatal low birth weight: data from a multicenter Italian cross sectional study. J Matern Fetal Neonatal Med. 2022;35(22):4365-4369. doi:10.1080/14767058.2020.1849120