function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Casanova, Michelle T. & Karol, Kenneth G.', 44],
    ['Coesel, Peter & Westen, Marien Van', 4],
    ['Costa, Fabiana De Matos & Ramos, Geraldo José Peixoto', 4],
    ['García Muro, Victoria J. & Rubinstein, Claudia V.', 2],
    ['Info Flora', 38],
    ['Jarvis, Charlie', 3],
    ['Levanets, Anatoliy & Janse van Vuuren, Sanet', 5],
    ['Pace, Roberto', 2],
    ['Ramos, Geraldo José Peixoto & Santos, Maria Aparecida Dos', 8],
    ['Ramos, Geraldo José Peixoto & Souza, Bruna Fadul De', 9],
    ['Sanjuan, Josep & Alqudah, Mohammad', 3],
    ['Sanjuan, Josep & Martín-Closas, Carles', 13],
    ['Santos, Maria Aparecida Dos & Ramos, Geraldo José Peixoto', 7],
    ['Trabelsi, Khaled & Sames, Benjamin & Wagreich, Michael', 11],
    ['Van Westen, Marien C. & Coesel, Peter F. M.', 7],
    ['Other (9)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=171)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);