Efficacy of 5% topical minoxidil versus 5 mg oral biotin versus topical minoxidil and oral biotin on hair growth in men: randomized, crossover, clinical trial - Flávia de Oliveira Valentim; Anna Carolina Miola; Hélio Amante Miot; Juliano Vilaverde Schmitt (Sociedade Brasileira de Dermatologia, 2024)