function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fernandez-Hilario, Robin & Reynel, Carlos', 2],
    ['Flor, Ismael Cividini & Flor, Jandira Chachá Ribeiro', 1],
    ['Grabovskaya-Borodina, Alisa E. & Illarionova, Irina D.', 1],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 1],
    ['Lin, Yun & Bi, Hai-Yan & Sun, Jun & Sun, Qian', 2],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=8)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);