function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahyong, Shane T.', 1],
    ['Alves, Maria De Lourdes & Ramos-Porto, Marilena', 1],
    ['Boyko, Christopher B. & Mendoza, Jose C. E. & Castro, Peter', 5],
    ['Brösing, Andreas', 1],
    ['Castro, Peter', 7],
    ['Devi, S. Suvarna & Mendoza, Jose C. E. & Ravinesh, R.', 2],
    ['Komai, Tomoyuki & Higashiji, Takuo & Castro, Peter', 3],
    ['Miers, E. J.', 1],
    ['Ng, Peter K. L.', 3],
    ['Ng, Peter K. L. & Ahyong, Shane T. & Castro, Peter', 3],
    ['Ortiz, Luis Hernández Georgina Ramírez & Reyes-Bonilla, Héctor', 4],
    ['PETER CASTRO & PETER K. L. NG & SHANE T. AHYONG', 30],
    ['Padate, Vinay P. & Periasamy, Rengaiyan', 1],
    ['Poupin, Joseph & Corbari, Laure & Pérez, Thierry', 1],
    ['Silambarasan, Krishnan & Kar, Annada Bhusan', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=66)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);