function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Babenko, Anatoly & Stebaeva, Sophya & Turnbull, Matthew S.', 4],
    ['Barra, Jean-Auguste', 1],
    ['Buşmachiu, Galina & Deharveng, Louis', 1],
    ['Canby, Margaret', 1],
    ['Gisin, Hermann', 1],
    ['Jantarit, Sopark & Bedos, Anne & Deharveng, Louis', 1],
    ['Mayvan, Mahmood Mehrafrooz & Greenslade, Penelope', 3],
    ['Smolis, Adrian & Deharveng, Louis', 3],
    ['Smolis, Adrian & Shayanmehr, Masoumeh & Yoosefi-Lafooraki, Elham', 2],
    ['Smolis, Adrian & Skarzynski, Dariusz', 2],
    ['Thibaud, Jean-Marc', 2],
    ['Yahyapour, Eliye & Shayanmehr, Masoumeh', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);