function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boonzaaier-Davids, Melissa K. & Florence, Wayne K.', 1],
    ['Boonzaaier-Davids, Melissa K. & Ma, Kevin C. K.', 1],
    ['Hayward, Peter J. & Winston, Judith E.', 1],
    ['Martino, Emanuela Di', 2],
    ['Ramalho, Laís V. & Calliari, Lauro', 1],
    ['Vieira, Leandro M & Gordon, Dennis P. & Souza, Facelucia B. C.', 1],
    ['Vieira, Leandro M. & Gordon, Dennis P. & Souza, Facelucia B. C.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=8)',
    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);