function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Besaury, Ludovic & Floret, Juliette & Rémond, Caroline', 1],
    ['Cha, Inseong & Kang, Heeyoung & Kim, Haneul & Bae, Seokhyeon', 1],
    ['Chen, Wen-Ming & Chen, Wei-Ting & Young, Chiu-Chung', 1],
    ['Huang, Zhaobin & Wei, Xiaomei & Lai, Qiliang & Chen, Shiyong', 2],
    ['Hwang, Woon Mo & Kim, Dohak & Kang, Keunsoo & Ahn, Tae-Young', 1],
    ['Ishii, Shigemi', 1],
    ['Jung-Hoon Yoon & Soo-Hwan Yeo & Tae-Kwang Oh', 1],
    ['Kang, Heeyoung & Cha, Inseong & Kim, Haneul & Joh, Kiseong', 1],
    ['Lee, Jae-Yun & Jeong, Yun-Seok & Kim, Pil Soo', 1],
    ['Lee, Shin Ae & Kim, Tae-Wan & Sang, Mee-Kyung & Song, Jaekyeong', 1],
    ['Ming Liu, Huan Qi, Xuesong Luo, Jun Dai, Fang Peng and Chengxian', 1],
    ['Motschulsky, Victor de', 1],
    ['Olga I. Nedashkovskaya & Makoto Suzuki & Marc Vancanneyt', 3],
    ['Osman, Ghenijan & Gao, Yan & Wang, Ning & Mahmud, Otkur', 1],
    ['Sefrji, Fatmah O. & Michoud, Grégoire & Marasco, Ramona', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);