function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Braun, Holger', 1],
    ['Chen, Shen-Zhi & Shi, Jian-Ping & Dai, Li', 1],
    ['Gankhuyag, Enkhtsetseg & Dorjsuren, Altanchimeg & Choi, Eun Hwa', 3],
    ['Sergeev, M. G. & Storozhenko, S. Yu. & Benediktov, A. A.', 1],
    ['Shen, Wei-Xing & Jia, Chun-Yan & Yin, Zhan', 1],
    ['Shi, Jian-Ping & Liu, Zhi-Wei & Li, Bao-Ping', 3],
    ['Storozhenko, S. Yu.', 2],
    ['Wang, Shengnan & Dai, Li & Yin, Zhan', 1],
    ['Ye, Bao-Hua & Wang, Shengnan & Dai, Li & Yin, Zhan', 1],
    ['Yin, Zhan', 1],
    ['Zhang, Da-Peng & Dai, Li & Yin, Zhan', 1],
    ['Zhang, Da-Peng & Wang, Sheng-Nan & Dai, Li & Yin, Zhan', 1],
    ['Zhang, Xiaohong & Lv, Chunyan & Yin, Hong', 1],
    ['Zheng, Fang-Qiang & Shi, Jian-Ping & Dang, Yan', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);