Masao Umetsu

Characteristics of Macrolide‐Resistant <i>Mycoplasma pneumoniae</i> Strains Isolated from Patients and Induced with Erythromycin <i>In Vitro</i>

Norio Okazaki, Mitsuo Narita, Satoshi Yamada et al. · Microbiology and Immunology · 2001 · 189 citations · Full text

Life Sciences, Infectious Diseases, Microbiology +17

Identification of a New Variable Sequence in the P1 Cytadhesin Gene of <i>Mycoplasma pneumoniae</i> : Evidence for the Generation of Antigenic Variation by DNA Recombination between Repetitive Sequences

Tsuyoshi Kenri, Rie Taniguchi, Yuko Sasaki et al. · Infection and Immunity · 1999 · 97 citations · Full text

Life Sciences, Genetics, Molecular Genetics +6

Chronic respiratory disease in premature infants caused by Chlamydia trachomatis.

Kei Numazaki, S. Chiba, Katsuhisa Kogawa et al. · Journal of Clinical Pathology · 1986 · 48 citations · Full text

Medicine, Infectious Diseases, Pediatrics +12

Virus Excretion and Antibody Response in Saliva in Natural Mumps

Yasuo Chiba, Kiyotaka Horino, Masao Umetsu et al. · The Tohoku Journal of Experimental Medicine · 1973 · 39 citations · Full text

Dentistry, Immunology, Infectious Diseases +12

Simple, rapid and sensitive method for the determination of indomethacin in plasma by high-performance liquid chromatography with ultraviolet detection

Juichi Sato, Takasuke Amizuka, Yuichi Niida et al. · Journal of Chromatography B Biomedical Sciences and Applications · 1997 · 36 citations

Pharmacy, Pharmaceutical Analysis, Pharmacology +8