function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Meng Zhou Jia-Jia & Vlasák, Josef & Yuan, Yuan', 2],
    ['Gorjón, Sergio P. & Jesus, Maria Aparecida De', 1],
    ['Henkel, Terry W. & Ryvarden, Leif', 6],
    ['Ji, Xiao-Hong & Chen, Qian & Gates, Genevieve & Du, Ping', 1],
    ['Moreau, Jean-David & Gand, Georges', 1],
    ['Vizzini, Alfredo & Angelini, Claudio & Losi, Cristiano', 1],
    ['Zambrano-Forero, Cristian J & Davila-Giraldo, Lina R', 1],
    ['Zhang, Xiaojie & Yuan, Qi & Su, Jiangqing & Zhao, Changlin', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);