function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Espinasa, Luis & Smith, Graeme B.', 5],
    ['Eusébio, Rita & Sendra, Alberto & Enghoff, Henrik', 7],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 6],
    ['Hazra, Ashis Kumar & Jana, Debanjan & Mandal, Guru Pada', 3],
    ['Kahrarian, Morteza & Molero, Rafael & Gaju, Miquel', 4],
    ['Linnaeus, Carolus', 3],
    ['Meurgey, François & Ramage, Thibault', 3],
    ['Molero, Rafael & Bach, Carmen & Sendra, Alberto', 15],
    ['Molero, Rafael & Tahami, Mohadeseh Sadat & Gaju, Miquel', 5],
    ['Molero-Baltanás, Rafael & Gaju-Ricart, Miquel & Fišer, Žiga', 9],
    ['Perez-Gelabert, Daniel E.', 3],
    ['Smith, Graeme B.', 25],
    ['Smith, Graeme B. & Mitchell, Andrew', 21],
    ['Smith, Graeme B. & Mitchell, Andrew & Lee, Timothy R. C.', 6],
    ['Tahami, Mohadeseh Sadat & Molero, Rafael & Gaju, Miquel', 4],
    ['Other (28)', 40]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=159)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);