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THE ACTION OF PROTHOHACICOTROPIC HORMONE AND SOME CHARACTERISTICS OF PROTHORACIC GLAND ACTIVITY IN BOMBYX MORI

THE ACTION OF PROTHOHACICOTROPIC HORMONE AND SOME CHARACTERISTICS OF PROTHORACIC GLAND ACTIVITY IN BOMBYX MORI

桑蚕促前胸腺激素的作用与前胸腺分泌活动的某些特点