Tetrapyrrole
[ar] رباعي البيرول
[bs] Tetrapirol
[ca] Tetrapirrole
[de] Tetrapyrrole
[es] Tetrapirrol
[fr] Tétrapyrrole
[gl] Tetrapirrol
[ja] テトラピロール
[ko] 테트라피롤
[ms] Tetrapirol