function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cadena-Castañeda, Oscar J.', 19],
    ['Cadena-Castañeda, Oscar J. & Quintana-Arias, Ronald Fernando', 8],
    ['Dawwrueng, Pattarawich & Gorochov, Andrei V.', 9],
    ['Hollier, John', 15],
    ['Hugel, Sylvain', 16],
    ['Ingrisch, Sigfrid', 245],
    ['Li, Miao-Miao & Liu, Xian-Wei & Li, Kai', 10],
    ['Liu, Jing & Lu, Xiangyi & Zhang, Qianwen & Wu, Xiangyi', 10],
    ['Lu, Xiangyi & Zhang, Qianwen & Bian, Xun', 28],
    ['Pang, Siyu & Zhang, Qianwen & Bian, Xun', 14],
    ['Xun, Bian & Rong-Sheng, Lu & Fuming, Shi', 7],
    ['Yin, Zi-Xu & Shen, Si-Zhong', 8],
    ['ZHANG, QIANWEN & PANG, SIYU & RONG, PINYING & BIAN, XUN', 11],
    ['Zhang, Qianwen & Luo, Yehong & Bian, Xun', 11],
    ['Zhang, Qianwen & Pang, Siyu & Bian, Xun', 10],
    ['Other (52)', 147]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=568)',
    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);