function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Davey, Nicola & Whitfield, E', 1],
    ['Jaeger, Wilhelm Friedrich', 3],
    ['Mackenzie, Melanie & Whitfield, Emily', 6],
    ['Martins, Luciana & Marques, Alexandre Oliveira', 2],
    ['Martins, Luciana & Tavares, Marcos', 5],
    ['Massin, Claude', 1],
    ['O’Loughlin, Mark & Whitfield, Emily', 4],
    ['O’Loughlin, P. Mark', 2],
    ['O’Loughlin, P. Mark & Mackenzie, Melanie & VandenSpiegel, Didier', 1],
    ['O’Loughlin, P. Mark & Skarbnik-López, Jessica', 1],
    ['Pawson, David L. & Pawson, Doris J. & King, Rachael A.', 3],
    ['Samyn, Yves & Vandenspiegel, Didier', 1],
    ['Thandar, Ahmed S.', 2],
    ['Théel, Hjalmar', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);