function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brailovsky, Harry & Barrera, Ernesto', 12],
    ['Coscarón, Maria Del Carmen & Volpi, Lorena N.', 4],
    ['Dellapé, Pablo Matías & Carpintero, Diego Leonardo', 2],
    ['Ghahari, Hassan & Linnavuori, Rauno E. & Moulet, Pierre', 1],
    ['Krüger, Andreas & Deckert, Jürgen', 1],
    ['Melo, Maria Cecilia & Dellape, Pablo Matias', 1],
    ['Novoselsky, T. & Freidberg, A. & Dorchin, N. & Meltzer, N.', 1],
    ['Volpi, Lorena N. & Coscarón, Maria Del Carmen', 1],
    ['Zhao, Ping & Mao, Runqian & Cao, Liangming', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);