function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bächli, Gerhard & Vilela, Carlos R.', 6],
    ['Cao, Hua-Zhi & Chen, Hong-Wei', 8],
    ['Chen, Hong-wei & Wang, Bao-cheng', 7],
    ['Chen, Xi-Peng & Chen, Hong-Wei', 19],
    ['Chen, Xi-Peng & Gao, Jian-Jun & Chen, Hong-Wei', 12],
    ['Cheng, Yu & Gao, Jian-Jun & Chen, Hong-Wei', 11],
    ['Cheng, Yu & Xu, Miaofeng & Chen, Hongwei', 6],
    ['Li, Bingxue & Zhang, Yuan & Chen, Hongwei', 14],
    ['Li, Tong & Cao, Huazhi & Gao, Jianjun & Chen, Hongwei', 20],
    ['WANG, YA-LIAN & LI, BING-XUE & CUI, MENG-DI & ZHANG, YUAN', 86],
    ['Wang, Le & Gao, Jian-Jun & Chen, Hong-Wei', 11],
    ['Wang, Nannan & Zhang, Yuan & Cheng, Yu & Chen, Hongwei', 11],
    ['Wang, Ya-Lian & Lu, Jin-Ming & Zhang, Yuan & Chen, Hong-Wei', 6],
    ['Wang, Ya-Lian & Peng, Zi-Qi & Jin, Feng-Liang & Chen, Hong-Wei', 10],
    ['Wu, Liang & Gao, Jian-Jun & Chen, Hong-Wei', 7],
    ['Other (11)', 30]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=264)',
    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);