APA (7th ed.) Citation

Ren, X., & Robbins, P. (1998). Ventilatory responses to hypoxia after 6 hours passive hyperventilation in humans.

Chicago Style (17th ed.) Citation

Ren, X., and P. Robbins. Ventilatory Responses to Hypoxia After 6 Hours Passive Hyperventilation in Humans. 1998.

MLA (9th ed.) Citation

Ren, X., and P. Robbins. Ventilatory Responses to Hypoxia After 6 Hours Passive Hyperventilation in Humans. 1998.

Warning: These citations may not always be 100% accurate.