function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alvarez, Ricardo Castro & Miranda, Vinícius Da Rocha', 2],
    ['Blake, James A.', 1],
    ['Costa, Dimitri de Araujo & Dolbeth, Marina & Prata, Jessica', 1],
    ['Erdoğan-Dereli, Deniz & Çinar, Melih Ertan & Dağli, Ertan', 4],
    ['Kinberg, Johan Gustaf Hjalmar', 1],
    ['Núñez, Jorge & Martínez, Alejandro', 5],
    ['Ribas, Julia & Hutchings, Pat', 2],
    ['Sun, Yue & Li, Xinzheng', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    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);