function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Pineda, Cristian', 3],
    ['Pineda, Cristian & Barros, Rafael', 1],
    ['Pineda, Cristian & Barros, Rafael C. & Koike, Ricardo M.', 6],
    ['Pineda, Cristian & Matsumoto, Keita', 40],
    ['Pineda, Cristian R. & Koike, Ricardo M. & Barros, Rafael C.', 2],
    ['Portela, Clayton & Mermudes, José Ricardo M.', 26],
    ['Woodley, Norman E.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=79)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);