function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alves, Maria De Lourdes & Ramos-Porto, Marilena', 1],
    ['Chen, Chien-Lin & Chan, Tin-Yam', 2],
    ['Ferreira, Luciane Augusto De Azevedo & Leray, Matthieu', 1],
    ['González, José A.', 1],
    ['Goy, Joseph W.', 8],
    ['Goy, Joseph W. & Martin, Joel W.', 5],
    ['Jiang, Qiwu & Li, Xinzheng', 2],
    ['Komai, Tomoyuki', 1],
    ['Naderloo, Reza & Türkay, Michael', 1],
    ['Olthof, Gabriël & Becking, Leontine E.', 1],
    ['Quintal, Bladimir Rodríguez & Goy, Joseph W.', 1],
    ['Rengaiyan, Periasamy & Palayil, John Kurian & Ingole, Baban', 1],
    ['Saito, Tomomi & Komai, Tomoyuki', 3],
    ['Soledade, Guidomar O. & Fonseca, Mytalle S.', 1],
    ['Zhao, Yu & Xu, Ting & Yang, Weidi & Qiu, Jian-Wen', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    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);