function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 2],
    ['Cibois, Alice & Vallotton, Laurent & Othman, Nagwa', 1],
    ['Flint, Peter & Whaley, David & Kirwan, Guy M.', 1],
    ['Melo, Martim & Freitas, Barbara & Verbelen, Philippe', 1],
    ['Mlíkovský, Jiří', 1],
    ['Rando, Juan Carlos & Alcover, Josep Antoni & Olson, Storrs L.', 2],
    ['Rando, Juan Carlos & Pieper, Harald & Alcover, Josep Antoni', 3],
    ['Sangster, George & King, Ben & Verbelen, Filip & Trainor, Colin', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    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);