function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezark, Larry G. & Santos-Silva, Antonio', 1],
    ['Ferreira, Gabriel Dos Santos & Ferreira, André Da Silva', 5],
    ['Groll, Elisa Von', 1],
    ['Juárez-Noé, Gino & González-Coronado, Uzbekia & Bezark, Larry G.', 1],
    ['Martins, Ubirajara R. & Galileo, Maria Helena M.', 1],
    ['Martins, Ubirajara R. & Santos-Silva, Antonio', 1],
    ['Monné, Miguel A.', 1],
    ['Nearns, Eugenio H. & Swift, Ian P. & Santos-Silva, Antonio', 1],
    ['Santos-Silva, Antonio & Bezark, Larry G.', 14],
    ['Santos-Silva, Antonio & Wappes, James E.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);