function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Felder, Darryl L. & Lemaitre, Rafael & Mantelatto, Fernando L.', 1],
    ['Mantelatto, Fernando L. & Miranda, Ivana & Vera-Silva, Ana L.', 1],
    ['Mantelatto, Fernando L. & Paixao, Juliana M. & Robles, Rafael', 1],
    ['Naderloo, Reza & Türkay, Michael', 1],
    ['Scopoli, Giovanni Antonio', 1],
    ['Tasso, Vicente & El Haddad, Mustapha & Assadi, Carolina', 1],
    ['Wicksten, Mary K.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=7)',
    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);