function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Babenko, Anatoly & Stebaeva, Sophya & Turnbull, Matthew S.', 7],
    ['Jordana, Rafael & Barranco, Pablo & Amezcua, Ana', 1],
    ['Jordana, Rafael & Fadrique, Floren & Baquero, Enrique', 3],
    ['Mayvan, Mahmood Mehrafrooz & Greenslade, Penelope', 1],
    ['Vargovitsh, Robert S.', 6],
    ['Vargovitsh, Robert S. & Buşmachiu, Galina', 2],
    ['Zeppelini, Douglas & Taylor, Steven J. & Slay, Michael E.', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);