function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amin, Omar Mohamed & Heckmann, Richard A.', 2],
    ['Campião, Karla Magalhães & Morais, Drausio Honorio', 5],
    ['Dimitrova, Zlatka', 4],
    ['Halajian, Ali & Smales, Lesley R. & Tavakol, Sareh', 10],
    ['Hernández-Orts, Jesús S. & Kuchta, Roman & Semenas, Liliana', 24],
    ['Hernández-Orts, Jesús S. & Viola, M. Natalia Paso', 10],
    ['Leidenberger, Sonja & Boström, Sven & Wayland, Matthew T.', 4],
    ['Lisitsyna, O. I. & Greben, O. B.', 8],
    ['Lisitsyna, O. I. & Kudlai, O. & Spraker, T. R. & Kuzmina, T. A.', 5],
    ['Luque, José L. & Muniz-Pereira, Luís C. & Siciliano, Salvatore', 6],
    ['Muniz-Pereira, Luís C. & Vieira, Fabiano M. & Luque, José L.', 4],
    ['Ortega-Olivares, Mirza P. & Hernández-Mena, David I.', 4],
    ['Paredes-León, Ricardo & García-Prieto, Luis', 4],
    ['Smales, Lesley R.', 11],
    ['Tavakol, Sareh & Amin, Omar M. & Luus-Powell, Wilmien J.', 13],
    ['Other (14)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=130)',
    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);